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License: MIT License

Solidity 52.52% Python 47.48%

chainlink nft brownie python solidity opensea

nft-mix's Introduction

Update: The code has been modified to use Sepolia as Rinkeby Testnet is not supported anymore.

Update: You should use ipfs:// instead of https://ipfs.io/ for your tokenURI

nft-mix

This is a repo to work with and use NFTs smart contracts in a python environment, using the Chainlink-mix as a starting point.

If you'd like to see another repo using random NFTs that are deployed to mainnet, check out the D&D package.

Prerequisites

Please install or have installed the following:

Installation

Install Brownie, if you haven't already. Here is a simple way to install brownie.

pip install eth-brownie

Or, if that doesn't work, via pipx

pip install --user pipx
pipx ensurepath
# restart your terminal
pipx install eth-brownie

Clone this repo

brownie bake nft-mix
cd nft

Install ganache-cli

npm install -g ganache-cli

If you want to be able to deploy to testnets, do the following.

Set your environment variables

Set your WEB3_INFURA_PROJECT_ID, and PRIVATE_KEY environment variables.

You can get a WEB3_INFURA_PROJECT_ID by getting a free trial of Infura. At the moment, it does need to be infura with brownie. You can find your PRIVATE_KEY from your ethereum wallet like metamask.

You'll also need testnet Sepolia ETH and LINK. You can get LINK and ETH into your wallet by using the Sepolia faucets located here. If you're new to this, watch this video.

You can add your environment variables to the .env file:

export WEB3_INFURA_PROJECT_ID=<PROJECT_ID>
export PRIVATE_KEY=<PRIVATE_KEY>

Then, make sure your brownie-config.yaml has:

dotenv: .env

You can also learn how to set environment variables easier

Or you can run the above in your shell.

Usage

There are 2 types of NFTs here.

SimpleCollectibles.sol
AdvancedCollectibles.sol

They each deploy unique dogs. The advanced version gives you a random breed (out of a Pug, Shiba Inu, and St. Bernard).

The advanced collection uses a Chainlink VRF to deploy the random dog.

You can 100% use the Sepolia testnet to see your NFTs rendered on opensea, but it's suggested that you test and build on a local development network so you don't have to wait as long for transactions.

Running Scripts

The simple collectibles work on a local network, however the advanced requires a testnet. When the video tutorial was launched, Rinkeby was used, but ever since it was discontinued we have switched to Sepolia as it is the testing standard for NFT platforms. You will need testnet Sepolia ETH and testnet Sepolia LINK. You can find faucets for both in the Chainlink documentation.

For the Simple ERC721

brownie run scripts/simple_collectible/deploy_simple.py --network sepolia
brownie run scripts/simple_collectible/create_collectible.py --network sepolia

For the Advanced ERC721

You'll need testnet ETH and testnet LINK in the wallet associated with your private key.

brownie run scripts/advanced_collectible/deploy_advanced.py --network sepolia
brownie run scripts/advanced_collectible/create_collectible.py --network sepolia

Then:

brownie run scripts/advanced_collectible/create_metadata.py --network sepolia
brownie run scripts/advanced_collectible/set_tokenuri.py --network sepolia

Verify on Etherscan

The simple contract and the advanced contract can be verified if you just set your ETHERSCAN_TOKEN.

Misc

There are some helpful scripts in helpful_scripts.py.

Viewing on OpenSea

After running the scripts from the For the Advanced ERC721 section

Create the metadata

Metadata is the URI needed to upload data. You can either:

Upload to IPFS yourself
Use the metadata already created when you cloned this repo.

If you want to upload to IPFS yourself

Download IPFS Set export IPFS_URL=http://127.0.0.1:5001 and export UPLOAD_IPFS=true environment variables Run the IPFS daemon: ipfs daemon Then Run

brownie run scripts/advanced_collectible/create_metadata.py --network sepolia

Alternatively, you could upload the uri manually: Add the file created in metadata/sepolia/NAME.json to IPFS or Pinata.

If you want to use the metadata from this repo

Just run:

brownie run scripts/advanced_collectible/create_metadata.py --network sepolia

Set the tokenURI Run

brownie run scripts/advanced_collectible/set_tokenuri.py --network sepolia

And after some time, (you may have to wait up to 20 minutes for it to render on opensea), you should see your NFT on opensea! It'll look something like this.

NEW Pinata

If you want to auto-upload to pinata instead of IPFS automatically, you can do so by getting a Pinata API Key.

You'll need the following environment variables (you can get them from Pinata)

PINATA_API_KEY
PINATA_API_SECRET

Then run:

python scripts/upload_to_pinata.py

Testing

brownie test

Linting

pip install black 
pip install autoflake
autoflake --in-place --remove-unused-variables -r .
black .

Resources

To get started with Brownie:

Chainlink Documentation
Check out the Chainlink documentation to get started from any level of smart contract engineering.
Check out the other Brownie mixes that can be used as a starting point for your own contracts. They also provide example code to help you get started.
"Getting Started with Brownie" is a good tutorial to help you familiarize yourself with Brownie.
For more in-depth information, read the Brownie documentation.

Shoutout to TheLinkMarines on twitter for the puppies!

Any questions? Join our Discord

License

This project is licensed under the MIT license.

nft-mix's People

Contributors

Stargazers

Watchers

Forkers

jamieloej the-insight-token cooper09 arlav mouseduc12 q2dev 10dimensions si3mshady prtk25 purvankbhiwgade chainlink-devrel brownie-mix geeksets rollue up1 mohobson rajesh-399 suissa sheenymeg ykoyote hadimorrow simonnieder devilla tomtclai vishrut578 renatogravino jedsada-gh frontenda albertahn eshnil2000 isabellasmallcombe karlylamm patrickasu hechain tanomoracci vivarox kairavi28 itseasy21 boreperfection rich2020 clwest waqasayubshah kerronmanwaring ulihorn loniewong bhargavaparoksham phreemason rgreenoe deepmax-labs jasonltt fnandot marcoslozadaf unbanksytv livethelifetv lvn1 primalcreate prysm44 dekivujic dkillen cleot clrke liu-xiaojian tstromas dariushuang roadtorusuanjun xavi-99 mihirmohan38 starcorpceo burnpile-eth nguoianphu hasansarikaya94 kaliwdsn nnscapital vestedinsight whitespur nghiangovan smartfinace 1crazymoney kodebykalab drr3d sj-001 urcoder divi-code ngurajeka sadernalwis whytewyll walywalid astralperspect lalinsch nickrobinson anfy2002us derekcoleman kennana keyvleon hmnmatt pon13 untsunts-code sfitdiez10 nindev t-damer

nft-mix's Issues

Issue with importing chainlink and openzeppelin

solc throws an error when brownie compiling.

import function per AdvancedCollectible.sol: (I use the .sol code and .yaml copies from github to rule out typos, but still the same)

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@chainlink/contracts/src/v0.6/VRFConsumerBase.sol";

According to the docs brownie should have ensured that all remapped paths are allowed. so there's no need to declare "allow_paths"

INFO: Could not find files for the given pattern(s).
Brownie v1.16.2 - Python development framework for Ethereum

Compiling contracts...
  Solc version: 0.6.6
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
CompilerError: solc returned the following errors:

contracts/AdvancedCollectibles.sol:3:1: ParserError: Source "OpenZeppelin/[email protected]/contracts/token/ERC721/ERC721.sol" not found: File outside of allowed directories.
import "OpenZeppelin/[email protected]/contracts/token/ERC721/ERC721.sol";
^-----------------------------------------------------------------------------------^

contracts/AdvancedCollectibles.sol:4:1: ParserError: Source "smartcontractkit/[email protected]/contracts/src/v0.6/VRFConsumerBase.sol" not found: File outside of allowed directories. 
import "smartcontractkit/[email protected]/contracts/src/v0.6/VRFConsumerBase.sol";
^-------------------------------------------------------------------------------------------------^

I then tried to use the actual path instead of remaps as suggested from another user on stackexchange but no luck either.......any ideas?

import "OpenZeppelin/[email protected]/contracts/token/ERC721/ERC721.sol";
import "smartcontractkit/[email protected]/contracts/src/v0.6/VRFConsumerBase.sol";

Transaction fee amount

Hello! I have a question regarding the transaction fee amount. Does it reflect real fee amount which I can expect on the Mainnet?

Issue with: brownie run scripts/simple_collectible/create_collectible.py --network rinkeby

nathan@nathan-VirtualBox:~/Documents/coding/nft/PatrickAlphaC/nftAttempt2/nft$ brownie run scripts/simple_collectible/create_collectible.py --network rinkeby
Brownie v1.14.6 - Python development framework for Ethereum

NftProject is the active project.
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 53, in run
    module = _import_from_path(script)
  File "brownie/project/scripts.py", line 149, in _import_from_path
    _import_cache[import_str] = importlib.import_module(import_str)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "./scripts/simple_collectible/create_collectible.py", line 3, in <module>
    from scripts.helpful_scripts import OPENSEA_FORMAT
ImportError: cannot import name 'OPENSEA_FORMAT' from 'scripts.helpful_scripts' (/home/nathan/Documents/coding/nft/PatrickAlphaC/nftAttempt2/nft/scripts/helpful_scripts.py)

I was looking at the code and the import error doesn't really make sense to me as in scripts.helpful_scripts there is not OPENSEA_FORMAT as that was replaced with OPENSEA_URL in the most recent push so create_collectable.py (within simple collectable) needs to be refactored to line 3 --> from scripts.helpful_scripts import OPENSEA_URL
also on line 16 same file

Gas estimation failed error

Please Help me about error.

After git clone the nft-mx source, I tried to do deploy_advanced.py like this.

brownie run scripts/advanced_collectible/deploy_advanced.py --network rinkeby

After that, I got error such as:

Transaction sent: 0xf4595c971682aac51a0d8bd54799f2eb3f3d35e6b602bc4143b063eb6b0c6ae9
Gas price: 1.0 gwei Gas limit: 2547768 Nonce: 190
AdvancedCollectible.constructor confirmed - Block: 8732182 Gas used: 2316153 (90.91%)
AdvancedCollectible deployed at: 0xB8843A7f249f83BcA850b62a02052eDD836783b8

File "c:\python37\lib\site-packages\brownie_cli\run.py", line 50, in main
args[""], method_name=args[""] or "main", _include_frame=True
File "c:\python37\lib\site-packages\brownie\project\scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "\study\NFTS\nft\scripts\advanced_collectible\deploy_advanced.py", line 18, in main
fund_advanced_collectible(advanced_collectible)
File ".\scripts\helpful_scripts.py", line 16, in fund_advanced_collectible
nft_contract, config["networks"][network.show_active()]["fee"], {"from": dev}
File "c:\python37\lib\site-packages\brownie\network\contract.py", line 1676, in call
return self.transact(*args)
File "c:\python37\lib\site-packages\brownie\network\contract.py", line 1559, in transact
allow_revert=tx["allow_revert"],
File "c:\python37\lib\site-packages\brownie\network\account.py", line 600, in transfer
gas_limit = Wei(gas_limit) or self._gas_limit(to, amount, gas_price, gas_buffer, data)
File "c:\python37\lib\site-packages\brownie\network\account.py", line 367, in _gas_limit
gas_limit = self.estimate_gas(to, amount, gas_price, data or "")
File "c:\python37\lib\site-packages\brownie\network\account.py", line 561, in estimate_gas
f"Gas estimation failed: '{msg}'. This transaction will likely revert. "
ValueError: Gas estimation failed: 'invalid opcode: opcode 0xfe not defined'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

even if I changed gas fee, but I got a same errors.

Please I appreciate if you give me advise.

Thanks.

Why need to wait like 20min to see an NFT image through opensea?

Hi, I have some questions. @PatrickAlphaC

First, Why do we need to wait like 20min to see an NFT image through the opensea?
I think it should be fast because we already uploaded to IPFS and got an image URI from there.

and... I tried using different big-size images like 900kb (1024x1024) and I found that I couldn't see these images using the opensea even though I waited for one day.
However, it's possible to see low-size images similar to the puppy images' size.

Found that it's very slow to see a new uploaded image through the opensea

It's very strange. I checked that json and uri are uploaded to ipfs correctly and I can see the json file and a uploaded image through my chrome browser. But I can't see the image through the opensea website.

Thank you.

Test notifications issue

issue with: Using ChainlinkClient to create NFT

Just for testing I was tryig to create NFT using API calls calling an API for getting the random number:

The code is:

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@chainlink/contracts/src/v0.6/ChainlinkClient.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract WeaponsCollectible is ERC721, ChainlinkClient {

    uint256 public tokenCounter;
    address public owner;
    uint256 public per_collectible_price;
    uint256 public total_funds_collected;

    mapping (bytes32 => address) public requestIdToSender;
    mapping (address => bool) public usedAirDrop; // Every account is eligible for 1 free collectible
    mapping (bytes32 => string) public requestIdToTokenURI;
    mapping (uint256 => Weapon) public tokenIdToWeapon;
    mapping (bytes32 => uint256) public requestIdToTokenId;
    // mapping (IERC20 => uint256) public whitelistedTokens;

    address private oracle;
    bytes32 private jobId;
    uint256 private fee;

    enum WeaponType { Revolver, AssaultRifle }

    event ownershipTransferedTo(address indexed new_owner);
    event requestedAirDrop(bytes32 indexed requestId);
    event requestedCollectible(bytes32 indexed requestId);
    event chainlinkReplied();
    event commissionChanged(uint256 new_commission);
    // event newTokenWhitelisted(IERC20 indexed token, uint256 indexed per_collectible_price);

    struct Weapon {
        WeaponType weaponType;
        uint256 damage;
    }

    constructor(
        address _oracle, 
        string memory _jobId, 
        uint256 _fee, 
        address _link
    )
    public 
    ERC721("Survival Weapon","WEAPON") {
    
        if(_link == address(0)) {
            setPublicChainlinkToken();
        } else {
            setChainlinkToken(_link);
        }

        owner = msg.sender;
        oracle = _oracle;
        jobId = stringToBytes32(_jobId);
        fee = _fee;
        per_collectible_price = 0;
    }

    function transferOwnership(address new_owner) public {
        require(owner == msg.sender, "Only present owner can transfer the ownership");
        owner = new_owner;
        emit ownershipTransferedTo(new_owner);
    }

    function changeCommission(uint256 new_commission) public {
        require(msg.sender == owner, "Only owner can change the commission");
        per_collectible_price = new_commission;
        emit commissionChanged(new_commission);
    } 

    function withdrawCollection(address payable benificiary, uint256 amount) public {
        require(owner == msg.sender, "Only owner can withdraw");
        require(amount <= total_funds_collected, "Withdraw amount greater than total_funds_collected");

        benificiary.transfer(amount);
    }

    // function whitelistToken(IERC20 token, uint256 per_collectible_price) public {
    //     require(owner == msg.sender);

    //     whitelistedTokens[token] = per_collectible_price;
    //     emit newTokenWhitelisted(token, per_collectible_price);
    // } 

    function requestAirDrop(string memory tokenURI) public returns (bytes32) {
        // Check if eligible for airdrop
        require(
            usedAirDrop[msg.sender] != true
        );

        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);

        // Set the URL to perform the GET request on
        request.add("get","http://www.randomnumberapi.com/api/v1.0/random");
        request.add("path","");
        request.addInt("times",1);

        // Send the request
        bytes32 requestId = sendChainlinkRequestTo(oracle, request, fee);

        requestIdToSender[requestId] = msg.sender;
        usedAirDrop[msg.sender] = true;
        requestIdToTokenURI[requestId] = tokenURI;

        emit requestedAirDrop(requestId);

        return requestId;
    }

    function createCollectible(string memory tokenURI) public payable returns (bytes32) {

        // Take payment
        if(per_collectible_price > 0) {
            require(
                msg.value > 0,
                "Must pay the price of each token"
            );
            require(
                msg.value % per_collectible_price == 0,
                "Must pay a multiple of per collectible price"
            );
        }

        total_funds_collected += msg.value;

        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);

        // Set the URL to perform the GET request on
        request.add("get","http://www.randomnumberapi.com/api/v1.0/random");
        request.add("path","");
        request.addInt("times",1);

        // Send the request
        bytes32 requestId = sendChainlinkRequestTo(oracle, request, fee);

        requestIdToSender[requestId] = msg.sender;
        requestIdToTokenURI[requestId] = tokenURI;

        emit requestedCollectible(requestId);

        return requestId;
    }

    function fulfill(bytes32 requestId, uint256 randomNumber) public recordChainlinkFulfillment(requestId) {
        
        emit chainlinkReplied();

        address collectibleOwner = requestIdToSender[requestId];
        string memory tokenURI = requestIdToTokenURI[requestId];

        uint256 newTokenId = tokenCounter;

        _safeMint(collectibleOwner, newTokenId);
        _setTokenURI(newTokenId, tokenURI);
        
        WeaponType gunType = WeaponType(randomNumber%2);

        uint256 minPower;
        if(gunType == WeaponType.AssaultRifle)
            minPower = 50;
        else if(gunType == WeaponType.Revolver)
            minPower = 10;

        Weapon memory weapon = Weapon(gunType, minPower + (randomNumber%50)); // Power varies in range of 50

        tokenIdToWeapon[newTokenId] = weapon;

        requestIdToTokenId[requestId] = newTokenId;

        tokenCounter+=1;
    }

    function setTokenURI(uint256 tokenId, string memory tokenURI) public {
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: transfer caller is not owner nor approved"
        );
        _setTokenURI(tokenId, tokenURI);
    }

    function stringToBytes32(string memory source) public pure returns (bytes32 result) {

        bytes memory tempEmptyStringTest = bytes(source);

        if(tempEmptyStringTest.length == 0) {
            return 0x0;
        }

        assembly {
            result := mload(add(source, 32))
        }
    }
}

After deploying to rinkeby (used the parameters from brownie-config.yml file), when the functions are called, the API call is not executed by chainlink oracle

deployed at: 0xe5eeeEB3C9536CeFf0Eba3828177b4C5E1DA3303 (Rinkeby)

PS: I made sure that the contract is funded with link tokens

[Error] IndexError: list index out of range

First, thank you for sharing your work. It helps me a lot.
I could run the simple deploy and collectible script but I got an error for the advanced_collectible scripts like below.

I ran this command
brownie run scripts/advanced_collectible/create_collectible.py --network ropsten

Brownie v1.16.0 - Python development framework for Ethereum

NftMixProject is the active project.

Running 'scripts/advanced_collectible/create_collectible.py::main'...
File "brownie/_cli/run.py", line 50, in main
args[""], method_name=args[""] or "main", _include_frame=True
File "brownie/project/scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/advanced_collectible/create_collectible.py", line 9, in main
advanced_collectible = AdvancedCollectible[len(AdvancedCollectible) - 1]
File "brownie/network/contract.py", line 160, in getitem
return self._contracts[i]
IndexError: list index out of range

Thank you,

ValueError: Gas estimation failed:

'invalid opcode: opcode 0xfe not defined'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

On Deploying Advanced Smart Contract
I have not enabled Etherscan API

Failed to establish a new connection. No route to host.

Hi, when I run this command on my cloud vm:
brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby
or deploy advanced, both show

File "/usr/local/lib/python3.6/site-packages/urllib3/connection.py", line 182, in _new_conn
    self, "Failed to establish a new connection: %s" % e
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0x7fc6c0e164e0>: Failed to establish a new connection: [Errno 113] No route to host

requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api-rinkeby.etherscan.io', port=443): Max retries exceeded with url: /api?module=contract&action=getsourcecode&address=0xae9474E9b5cA8D912B00D105A8d1b4f3236B33c8 (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fc6c0e164e0>: Failed to establish a new connection: [Errno 113] No route to host',))

which implies the request url should be: http://api-rinkeby.etherscan.io/api?module=contract&action=getsourcecode&address=0xae9474E9b5cA8D912B00D105A8d1b4f3236B33c8

However my browser can get this url and return status 200.
What's the problem here? thx

Video tokens will not load on Rarible.

I have uploaded tokens to the Rinkeby Blockchain and they work on Openseas but the video will not load on Rinkeby.rarible.com.

https://rinkeby.rarible.com/token/0x7a3ba87e3b49dd82f0774b8ead207db3e39c9134:30?tab=details
https://testnets.opensea.io/assets/0x7a3ba87e3b49dd82f0774b8ead207db3e39c9134/30

Dog Randomization

Hi,

I was wondering if there could be a version of the code without the dog randomization.

Thank you!

fund_collectible

brownie run scripts/advanced_collectible/fund_collectible.py --network rinkeby
Brownie v1.13.3 - Python development framework for Ethereum

NiftProject is the active project.

Running 'scripts/advanced_collectible/fund_collectible.py::main'...
File "brownie/_cli/run.py", line 49, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 96, in run
return_value = f_locals[method_name](*args, **kwargs)
File "", line 4, in main
File "brownie/network/contract.py", line 158, in getitem
return self._contracts[i]
IndexError: list index out of range

AttributeError: 'list' object has no attribute 'transfer'

Seeingthis when trying to create_collectible, no issues executing deploy_advanced.

I modified the metadata a bit to be a collection of 6 tokens. Not sure if this is related to the bug below. I have link and eth in on rinkeby.

-> % brownie run scripts/advanced_collectible/create_collectible.py --network rinkeby
Brownie v1.16.2 - Python development framework for Ethereum

PoopContractProject is the active project.

Running 'scripts/advanced_collectible/create_collectible.py::main'...
args 0x4292d3dCD2568da968F2875F30e5dbe0E82C2C67 1000000000000000000 ['dev']
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/advanced_collectible/create_collectible.py", line 10, in main
    fund_with_link(advanced_collectible.address)
  File "./scripts/helpful_scripts.py", line 90, in fund_with_link
    tx = interface.LinkTokenInterface(link_token).transfer(
  File "brownie/network/contract.py", line 1692, in __call__
    return self.transact(*args)
  File "brownie/network/contract.py", line 1565, in transact
    return tx["from"].transfer(
AttributeError: 'list' object has no attribute 'transfer'

Issue on python script

I configured as explained in tutorial, I create a wallet on metamask and added 10 LINK in rinkeby but once I run:

brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby

I have follow error:

Running 'scripts/simple_collectible/deploy_simple.py::main'...
rinkeby
File "brownie/_cli/run.py", line 49, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/simple_collectible/deploy_simple.py", line 10, in main
SimpleCollectible.deploy({"from": dev}, publish_source=publish_source)
File "brownie/network/contract.py", line 600, in call
return tx["from"].deploy(
File "brownie/network/account.py", line 508, in deploy
receipt, exc = self._make_transaction(
File "brownie/network/account.py", line 743, in _make_transaction
exc = VirtualMachineError(e)
File "brownie/exceptions.py", line 85, in init
raise ValueError(exc["message"]) from None
ValueError: insufficient funds for gas * price + value

what should be the issue?

Adding different images and description using Pinata

Hi, I was going through the simple_collectible tutorial , and wanted to experiment with my own image of a ticket. I tried to modify the attributes with my own data in the file metadata/rinkeby/0-PUG.json with the following

{
    "name": "Ticket",
    "description": "FirstTickett",
    "image": "https://gateway.pinata.cloud/ipfs/IPFSCID",
    "attributes": [
        {
            "trait_type": "Mistake",
            "value": 100
        }
    ]
}

changing the sample_token_uri ="https://gateway.pinata.clou/ipfs/IPFSCID" which stores the actual image of the ticket. Ialso defined a ERC simple collectible as follows

contract SimpleCollectible is ERC721 {
    uint256 public tokenCounter;
    constructor () public ERC721 ("Ticket", "TICKET"){
        tokenCounter = 0;
    }

I can successfully compile and run both the deploy scripts as mentioned in the README. However , I dont really get the image in opensea dashboard and also the description doesnt change. Is this not the right way of creating unique nfts . I could be perhaps totally wrong in my understanding .

Another question ,is that in terminal , I alaws see error messages even if it compiles and deploys. I wonder what is the reason. I understand it as a problem with linting of style . Screenshot below

test 4

Contract 'AdvancedCollectible' object has no attribute 'tokenIdToBreed'

I followed all steps from the video. When deploying create_collectible.py I receive the following error

kai@MBP-von-Kai nft-new % brownie run scripts/advanced_collectible/create_collectible.py --network rinkeby
Brownie v1.16.3 - Python development framework for Ethereum

NftNewProject is the active project.

Running 'scripts/advanced_collectible/create_collectible.py::main'...
Transaction sent: 0x94f070239adc0329991d534810760ebe66788cb5147da165cdbe35d24c43d459
Gas price: 1.000000009 gwei Gas limit: 178850 Nonce: 48
AdvancedCollectible.createCollectible confirmed Block: 9321866 Gas used: 157791 (88.23%)

AdvancedCollectible.createCollectible confirmed Block: 9321866 Gas used: 157791 (88.23%)

File "brownie/_cli/run.py", line 49, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/advanced_collectible/create_collectible.py", line 15, in main
breed = get_breed(advanced_collectible.tokenIdToBreed(token_id))
File "brownie/network/contract.py", line 832, in getattribute
raise AttributeError(f"Contract '{self._name}' object has no attribute '{name}'")
AttributeError: Contract 'AdvancedCollectible' object has no attribute 'tokenIdToBreed'

Getting 404 on archive/master.zip

Great project, but..

brownie bake nft-mix

ConnectionError: 404 error when attempting to download from https://github.com/brownie-mix/nft-mix/archive/master.zip - are you sure this is a valid mix? https://github.com/brownie-mix

insufficient funds for gas * price + value

Running 'scripts/simple_collectible/deploy_simple.py::main'... rinkeby File "/usr/local/lib/python3.8/dist-packages/brownie/_cli/run.py", line 49, in main return_value, frame = run( File "/usr/local/lib/python3.8/dist-packages/brownie/project/scripts.py", line 103, in run return_value = f_locals[method_name](*args, **kwargs) File "./scripts/simple_collectible/deploy_simple.py", line 10, in main SimpleCollectible.deploy({"from": dev}, publish_source=publish_source) File "/usr/local/lib/python3.8/dist-packages/brownie/network/contract.py", line 600, in __call__ return tx["from"].deploy( File "/usr/local/lib/python3.8/dist-packages/brownie/network/account.py", line 508, in deploy receipt, exc = self._make_transaction( File "/usr/local/lib/python3.8/dist-packages/brownie/network/account.py", line 743, in _make_transaction exc = VirtualMachineError(e) File "/usr/local/lib/python3.8/dist-packages/brownie/exceptions.py", line 85, in __init__ raise ValueError(exc["message"]) from None ValueError: insufficient funds for gas * price + value

Error on deploy_advanced.py Rinkeby deployment

solved it ... I forgot a definition of link_token ...

deploy to rinkeby time out

hello, after run brownie run scripts/advanced_collectible/deploy_advanced.py --network rinkeby, then output:

❯ brownie run scripts/advanced_collectible/deploy_advanced.py --network rinkeby
Brownie v1.16.2 - Python development framework for Ethereum

NftProject is the active project.

Running 'scripts/advanced_collectible/deploy_advanced.py::main'...
rinkeby
Transaction sent: 0x5ab36042e6a5d79afc79953e36cde14dfa0f62b081a99217baab8489b489347c
  Gas price: 1.000000014 gwei   Gas limit: 2546712   Nonce: 8
  AdvancedCollectible.constructor confirmed   Block: 9210887   Gas used: 2315193 (90.91%)
  AdvancedCollectible deployed at: 0x1197Ddf206B0953666C4DF0DC0056cb4b46A5ACA

Exception in thread Thread-3:
Traceback (most recent call last):
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connection.py", line 170, in _new_conn
    (self._dns_host, self.port), self.timeout, **extra_kw
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/util/connection.py", line 96, in create_connection
    raise err
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/util/connection.py", line 86, in create_connection
    sock.connect(sa)
TimeoutError: [Errno 110] Connection timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connectionpool.py", line 706, in urlopen
    chunked=chunked,
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connectionpool.py", line 382, in _make_request
    self._validate_conn(conn)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connectionpool.py", line 1010, in _validate_conn
    conn.connect()
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connection.py", line 353, in connect
    conn = self._new_conn()
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connection.py", line 182, in _new_conn
    self, "Failed to establish a new connection: %s" % e
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0x7f18be0a93d0>: Failed to establish a new connection: [Errno 110] Connection timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/connectionpool.py", line 756, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/urllib3/util/retry.py", line 574, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='api-rinkeby.etherscan.io', port=443): Max retries exceeded with url: /api?module=contract&action=getsourcecode&address=0x1197Ddf206B0953666C4DF0DC0056cb4b46A5ACA&apiKey=XPDQDKHGMINTAR1WNDAID5UCBGA141GGMS (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f18be0a93d0>: Failed to establish a new connection: [Errno 110] Connection timed out'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/haoran/.conda/envs/db/lib/python3.7/threading.py", line 926, in _bootstrap_inner
    self.run()
  File "/home/haoran/.conda/envs/db/lib/python3.7/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/contract.py", line 243, in _add_from_tx
    self.at(tx.contract_address, tx.sender, tx)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/contract.py", line 217, in at
    contract = _find_contract(address)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/state.py", line 557, in _find_contract
    return Contract(address)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/contract.py", line 946, in __init__
    contract = self.from_explorer(address, owner=owner, silent=True)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/contract.py", line 1097, in from_explorer
    data = _fetch_from_explorer(address, "getsourcecode", silent)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/brownie/network/contract.py", line 1913, in _fetch_from_explorer
    response = requests.get(url, params=params, headers=REQUEST_HEADERS)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/home/haoran/.conda/envs/db/lib/python3.7/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api-rinkeby.etherscan.io', port=443): Max retries exceeded with url: /api?module=contract&action=getsourcecode&address=0x1197Ddf206B0953666C4DF0DC0056cb4b46A5ACA&apiKey=XPDQDKHGMINTAR1WNDAID5UCBGA141GGMS (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f18be0a93d0>: Failed to establish a new connection: [Errno 110] Connection timed out'))

I tried many times, but still not work, I do really edited and source .env before run deploy, export my PRIVATE_KEY and WEB3_INFURA_PROJECT_ID.

Issue related to IPFS

Hello! So I have an issue that the API isn't printed at all if UPLOAD_IPFS & the URL is true (connected or not),

def write_metadata(number_of_tokens, nft_contract):
    for token_id in range(number_of_tokens):
        collectible_metadata = sample_metadata.metadata_template
        breed = get_breed(nft_contract.tokenIdToBreed(token_id))
        metadata_file_name = (
            "./metadata/{}/".format(network.show_active()) + str(token_id) + "-" + breed + ".json"
        )
        if Path (metadata_file_name).exists():
            print("{} already found!".format(metadata_file_name))
        else:
            print("Creating Metadata File: {}".format(metadata_file_name))
            collectible_metadata["name"] = get_breed(
                nft_contract.tokenIdToBreed(token_id))
            collectible_metadata["description"] = "An adorable {} pup!".format(
                collectible_metadata["name"])
            print(collectible_metadata)
            image_to_upload = None
            if os.getenv("UPLOAD_IPFS") == "true":
                image_path = "./img/{}.png".format(breed.lower().replace("_", "-"))
                image_to_upload = upload_to_ipfs(image_path)
                print(image_path)

def upload_to_ipfs(filepath):
    with Path(filepath).open("rb") as fp:
            image_binary = fp.read()
            ipfs_url = "http://localhost:5001"
            response = requests.post(ipfs_url + "/api/v0/add", files={"file": image_binary})
            print(response.json())
            ipfs_hash = response.json()["Hash"]
            filename = filepath.split("/")[-1:][0]
            image_uri = "http://ipfs.io/ipfs/{}?filename={}".format(ipfs_hash, filename)
            print(uri)
            return uri
    return None

If I use the curl command manually it worked

curl -X POST -F file=@img/pug.png http://localhost:5001/api/v0/add                                               
{"Name":"pug.png","Hash":"QmSsYRx3LpDAb1GZQm7zZ1AuHZjfbPkD6J7s9r41xu1mf8","Size":"5699"}

But when I ran the Python, the results are shown below:

Brownie v1.14.4 - Python development framework for Ethereum

NftMixProject is the active project.

Running 'scripts/advanced_collectible/create_metadata.py::main'...
Working on rinkeby
The number of tokens you've deployed is 1
Creating Metadata File: ./metadata/rinkeby/0-PUG.json
{'name': 'PUG', 'description': 'An adorable PUG pup!', 'image': '', 'attributes': [{'trait_type': 'cuteness', 'value': 100}]}

It doesn't show the curl result, do I have to use the curl command manually so the other/next JSON (SHIBA_INU) will be shown? Thank you 🙏

No contract in SimpleCollectible ContractContainer :(

Followed the exact steps in README but I get the following. Does anyone know what I'm doing wrong?

lucascheon@Lucass-MacBook-Pro nft % brownie run scripts/simple_collectible/create_collectible.py
Brownie v1.14.6 - Python development framework for Ethereum

NftProject is the active project.

Launching 'ganache-cli --port 8545 --gasLimit 12000000 --accounts 10 --hardfork istanbul --mnemonic brownie'...

Running 'scripts/simple_collectible/create_collectible.py::main'...
development
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/simple_collectible/create_collectible.py", line 11, in main
    simple_collectible = SimpleCollectible[len(SimpleCollectible) - 1]
  File "brownie/network/contract.py", line 158, in __getitem__
    return self._contracts[i]
IndexError: list index out of range
Terminating local RPC client...

ModuleNotFoundError: No module named 'Users.t'

OS: macOS Big Sur 11.6
Brownie: v1.16.4
Python: 3.9.0 (also tried with 3.8.6)

Hi! When I run brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby, I got this:

Brownie v1.16.4 - Python development framework for Ethereum

Compiling contracts...
  Solc version: 0.6.6
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
Generating build data...
 - OpenZeppelin/[email protected]/ERC165
 - OpenZeppelin/[email protected]/IERC165
 - OpenZeppelin/[email protected]/SafeMath
 - OpenZeppelin/[email protected]/ERC721
 - OpenZeppelin/[email protected]/IERC721
 - OpenZeppelin/[email protected]/IERC721Enumerable
 - OpenZeppelin/[email protected]/IERC721Metadata
 - OpenZeppelin/[email protected]/IERC721Receiver
 - OpenZeppelin/[email protected]/Address
 - OpenZeppelin/[email protected]/Context
 - OpenZeppelin/[email protected]/EnumerableMap
 - OpenZeppelin/[email protected]/EnumerableSet
 - OpenZeppelin/[email protected]/Strings
 - smartcontractkit/[email protected]/VRFConsumerBase
 - smartcontractkit/[email protected]/VRFRequestIDBase
 - smartcontractkit/[email protected]/LinkTokenInterface
 - smartcontractkit/[email protected]/SafeMathChainlink
 - AdvancedCollectible
 - SimpleCollectible
 - VRFCoordinatorMock

Compiling contracts...
  Solc version: 0.6.12
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
Generating build data...
 - smartcontractkit/[email protected]/LinkTokenReceiver
 - smartcontractkit/[email protected]/AggregatorInterface
 - smartcontractkit/[email protected]/AggregatorV2V3Interface
 - smartcontractkit/[email protected]/AggregatorV3Interface
 - smartcontractkit/[email protected]/ChainlinkRequestInterface
 - smartcontractkit/[email protected]/LinkTokenInterface
 - smartcontractkit/[email protected]/SafeMathChainlink
 - MockOracle
 - MockV3Aggregator

Compiling contracts...
  Solc version: 0.4.26
  Optimizer: Enabled  Runs: 200
  EVM Version: Byzantium
Generating build data...
 - smartcontractkit/[email protected]/ERC677Token
 - smartcontractkit/[email protected]/ERC20
 - smartcontractkit/[email protected]/ERC20Basic
 - smartcontractkit/[email protected]/ERC677
 - smartcontractkit/[email protected]/ERC677Receiver
 - smartcontractkit/[email protected]/BasicToken
 - smartcontractkit/[email protected]/SafeMathChainlink
 - smartcontractkit/[email protected]/StandardToken
 - LinkToken

Generating interface ABIs...
NftProject is the active project.
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 53, in run
    module = _import_from_path(script)
  File "brownie/project/scripts.py", line 149, in _import_from_path
    _import_cache[import_str] = importlib.import_module(import_str)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
ModuleNotFoundError: No module named 'Users.t'

Downloaded binary would not execute, or returned unexpected output. If this issue persists, you can try to compile from source code using `solcx.compile_solc('0.4.26')`.

After running:

brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby

I run into this problem:
"Downloaded binary would not execute, or returned unexpected output. If this issue persists, you can try to compile from source code using solcx.compile_solc('0.4.26')."

test 5

Gas Issue

ValueError: Gas estimation failed: 'invalid opcode: opcode 0xfe not defined'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

How does one set said gas limits?

IndexError: list index out of range

Hi,
When i run this command i get the following issues Any reason?
"brownie run scripts/simple_collectible/create_collectible.py"

but I have executed following command successfully and deployed without error
"brownie run scripts/simple_collectible/deploy_simple.py"

Error

File "brownie/_cli/run.py", line 50, in main
args[""], method_name=args[""] or "main", _include_frame=True
File "brownie/project/scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/simple_collectible/create_collectible.py", line 9, in main
simple_collectible = SimpleCollectible[len(SimpleCollectible) - 1]
File "brownie/network/contract.py", line 158, in getitem
return self._contracts[i]
IndexError: list index out of range

HTTPError: 401 Client Error: Unauthorized for url:

When running the command 'brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby' it outputs this: 'INFO: Could not find files for the given pattern(s).' a bunch of pointers to the code and the actual error: 'HTTPError: 401 Client Error: Unauthorized for url: https://rinkeby.infura.io/v3/*the ID for my infura project*'. I appreciate anyone that can help, thanks ahead of time.

Also, I should mention I set the necessary PRIVATE_KEY environment variable from my wallet and the needed WEB3_INFURA_PROJECT_ID environment variable from a new and active Infura project.

ValueError: Gas estimation failed: 'execution reverted'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

Hi,

I tried to run 'scripts/advanced_collectible/create_collectible.py'
but got this error. Kindly help:

Running 'scripts/advanced_collectible/create_collectible.py::main'...
File "brownie/_cli/run.py", line 49, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/advanced_collectible/create_collectible.py", line 11, in main
transaction = advanced_collectible.createCollectible(
File "brownie/network/contract.py", line 1692, in call
return self.transact(*args)
File "brownie/network/contract.py", line 1565, in transact
return tx["from"].transfer(
File "brownie/network/account.py", line 642, in transfer
receipt, exc = self._make_transaction(
File "brownie/network/account.py", line 725, in _make_transaction
raise VirtualMachineError(e) from None
File "brownie/exceptions.py", line 121, in init
raise ValueError(str(exc)) from None
ValueError: Gas estimation failed: 'execution reverted'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

My question where should I set the gas limit properly?

create_collectible.py

`from brownie import AdvancedCollectible, accounts, config
from scripts.helpful_scripts import get_oubreed
import time

STATIC_SEED = 123

def main():
dev = accounts.add(config['wallets']['from_key'])
advanced_collectible = AdvancedCollectible[len(AdvancedCollectible) - 1]
transaction = advanced_collectible.createCollectible(
STATIC_SEED, "None", {"from": dev})
transaction.wait(1)
requestId = transaction.events['requestedCollectible']['requesId']
token_id = advance_collectible.requestIdToTokenId(requestId)
time.sleep(45)
oubreed = get_oubreed(advanced_collectible.tokenIdToBreed(token_Id))
print('breed of tokenId {} is {}'.format(token_id, oubreed))`

oubreed is correct as I modified as it is.

brownie-config.yaml
`dependencies:

OpenZeppelin/[email protected]
smartcontractkit/[email protected]
compiler:
solc:
remappings:
- "@OpenZeppelin=OpenZeppelin/[email protected]"
- "@chainlink=smartcontractkit/[email protected]"
  dotenv: .env
  wallets:
  from_key: ${PRIVATE_KEY}
  from_mnemonic: ${MNEMONIC}

networks:
default: development
rinkeby:
vrf_coordinator: "0xb3dCcb4Cf7a26f6cf6B120Cf5A73875B7BBc655B"
link_token: "0x01be23585060835e02b77ef475b0cc51aa1e0709"
keyhash: "0x2ed0feb3e7fd2022120aa84fab1945545a9f2ffc9076fd6156fa96eaff4c1311"
fee: 100000000000000000`

thanks

insufficient funds for gas * price + value

I'm on the part where we run the deploy script. Is 0.01 ETH not enough? I'm using a test wallet so I don't have much ETH on there.

TEst 2

Gas estimation failed: 'insufficient funds for transfer'.

I'm getting gas estimation failed (insufficient funds for transfer) error even though I have 200 LINK in my metamask wallet under rinkeby test network. What am I doing wrong here? 😭

lucascheon@Lucass-MacBook-Pro nft % brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby
Brownie v1.14.6 - Python development framework for Ethereum

NftProject is the active project.

Running 'scripts/simple_collectible/deploy_simple.py::main'...
rinkeby
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/simple_collectible/deploy_simple.py", line 13, in main
    SimpleCollectible.deploy({"from": dev}, publish_source=publish_source)
  File "brownie/network/contract.py", line 593, in __call__
    return tx["from"].deploy(
  File "brownie/network/account.py", line 465, in deploy
    exc = VirtualMachineError(e)
  File "brownie/exceptions.py", line 118, in __init__
    raise ValueError(str(exc)) from None
ValueError: Gas estimation failed: 'insufficient funds for transfer'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

This the error I'm getting

 Running setup.py install for bitarray ... error
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\John\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\John\\AppData\\Local\\Temp\\pip-install-z7al522m\\bitarray_c56a30c2fa0c402d9e766c464a07a8f5\\setup.py'"'"'; __file__='"'"'C:\\Users\\John\\AppData\\Local\\Temp\\pip-install-z7al522m\\bitarray_c56a30c2fa0c402d9e766c464a07a8f5\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\John\AppData\Local\Temp\pip-record-q10h_0p_\install-record.txt' --single-version-externally-managed --user --prefix= --compile --install-headers 'C:\Users\John\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Include\bitarray'
         cwd: C:\Users\John\AppData\Local\Temp\pip-install-z7al522m\bitarray_c56a30c2fa0c402d9e766c464a07a8f5\
    Complete output (19 lines):
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.9
    creating build\lib.win-amd64-3.9\bitarray
    copying bitarray\test_bitarray.py -> build\lib.win-amd64-3.9\bitarray       
    copying bitarray\test_util.py -> build\lib.win-amd64-3.9\bitarray
    copying bitarray\util.py -> build\lib.win-amd64-3.9\bitarray
    copying bitarray\__init__.py -> build\lib.win-amd64-3.9\bitarray
    running build_ext
    building 'bitarray._bitarray' extension
    creating build\temp.win-amd64-3.9
    creating build\temp.win-amd64-3.9\Release
    creating build\temp.win-amd64-3.9\Release\bitarray
    C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.2032.0_x64__qbz5n2kfra8p0\include -IC:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.2032.0_x64__qbz5n2kfra8p0\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\include /Tcbitarray/_bitarray.c /Fobuild\temp.win-amd64-3.9\Release\bitarray/_bitarray.obj
    _bitarray.c
    C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.2032.0_x64__qbz5n2kfra8p0\include\pyconfig.h(59): fatal error C1083: Cannot open include file: 'io.h': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.25.28610\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\Users\John\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\python.exe' 
-u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\John\\AppData\\Local\\Temp\\pip-install-z7al522m\\bitarray_c56a30c2fa0c402d9e766c464a07a8f5\\setup.py'"'"'; __file__='"'"'C:\\Users\\John\\AppData\\Local\\Temp\\pip-install-z7al522m\\bitarray_c56a30c2fa0c402d9e766c464a07a8f5\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, 
'"'"'exec'"'"'))' install --record 'C:\Users\John\AppData\Local\Temp\pip-record-q10h_0p_\install-record.txt' --single-version-externally-managed --user --prefix= --compile --install-headers 'C:\Users\John\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Include\bitarray' Check the logs for full command output.

Cannot use a new/custom contract with the deploy_*.py script.

Not sure exactly whats going on. I get the exact same error, even when I follow you exactly. Using the AdvancedCollectible.sol contract.

Is this just a config issue on my end with python? perhaps my version is to new, or too old?

ImportError: cannot import name

Whenever I try to run my script with this command:
'brownie run .\scripts\advanced_collectible\deploy_advanced.py',
I always get an error, I've tried multiple things to fix it and nothing seems to work.
ERROR:
ImportError: cannot import name 'AdvancedCollectible' from 'brownie' (C:\Python\Python39\lib\site-packages\brownie_init_.py)

I've got the latest version of brownie and python.

Recently whilst trying to fix it another problem popped up, not sure if it's going anything to do with it.

Errors when running the ' brownie bake nft-mix ' command

I'm coming into the following error when attempting the brownie bake nft-mix command, any ideas why?
I'm running Ubuntu on WSL.

wardu@win:~$ brownie bake nft-mix
Brownie v1.16.4 - Python development framework for Ethereum

Downloading from https://github.com/brownie-mix/nft-mix/archive/main.zip...
46.8kiB [00:00, 812kiB/s]
  File "brownie/_cli/__main__.py", line 64, in main
    importlib.import_module(f"brownie._cli.{cmd}").main()
  File "brownie/_cli/bake.py", line 26, in main
    path = project.from_brownie_mix(args["<mix>"], args["<path>"], args["--force"])
  File "brownie/project/main.py", line 617, in from_brownie_mix
    project_path.parent.joinpath(f"{project_name}-mix-{default_branch}").rename(project_path)
  File "/usr/lib/python3.8/pathlib.py", line 1359, in rename
    self._accessor.rename(self, target)
PermissionError: [Errno 13] Permission denied: '/home/wardu/nft-mix-main' -> '/home/wardu/nft'

test6

Update to ChainLink v0.8 and Solidity 0.8

Hello, thanks for this repository, I'm currently learning by it but I found out the project uses a bit old versions of ChainLink and Solidity. I'm writing my own project rn with the latest Solidity compiler and have some issues so would be cool if this repo got updated to latest ChainLink / Solidity / OpenZeppelin

Error when trying to deploy the simple NFT.

Hello,

I've been trying to do the most basic of things, download the git repo and deploy the simple NFT according to the tutorial. I get the following error message:

Brownie v1.13.3 - Python development framework for Ethereum

NftMixProject is the active project.

Launching 'ganache-cli --port 8545 --gasLimit 12000000 --accounts 10 --hardfork istanbul --mnemonic brownie'...

Running 'scripts/simple_collectible/deploy_simple.py::main'...
mnemonic: 'steak unhappy joke dune invite relax candy update agent vacuum bone ignore'
development
File "brownie/_cli/run.py", line 49, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 96, in run
return_value = f_locals[method_name](*args, **kwargs)
File "", line 4, in main
File "brownie/network/contract.py", line 158, in getitem
return self._contracts[i]
IndexError: list index out of range
Terminating local RPC client...

I got the same issue trying to run with sudo, nothing works.

SolcInstallationError: Downloaded binary would not execute, or returned unexpected output

I'm sure this is an easy fix but I'm a total neophyte. When I try to deploy the simple collectible contract I get an error. It seems like there's an issue with solidity but I'm not sure. I would greatly appreciate some help figuring this out!

Downloading from https://solc-bin.ethereum.org/macosx-amd64/solc-macosx-amd64-v0.4.26+commit.4563c3fc
100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████| 26.4M/26.4M [08:11<00:00, 53.8kiB/s]
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
Referenced from: /Users/iantaylor/.solcx/solc-v0.4.26
Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
Referenced from: /Users/iantaylor/.solcx/solc-v0.4.26
Expected in: /usr/lib/libSystem.B.dylib

File "brownie/_cli/main.py", line 64, in main
importlib.import_module(f"brownie._cli.{cmd}").main()
File "brownie/_cli/run.py", line 39, in main
active_project = project.load()
File "brownie/project/main.py", line 745, in load
return Project(name, project_path)
File "brownie/project/main.py", line 180, in init
self.load()
File "brownie/project/main.py", line 235, in load
self._compile(changed, self._compiler_config, False)
File "brownie/project/main.py", line 92, in _compile
build_json = compiler.compile_and_format(
File "brownie/project/compiler/init.py", line 105, in compile_and_format
find_solc_versions(solc_sources, install_needed=True, silent=silent)
File "brownie/project/compiler/solidity.py", line 173, in find_solc_versions
install_solc(*to_install)
File "brownie/project/compiler/solidity.py", line 105, in install_solc
solcx.install_solc(version, show_progress=True)
File "solcx/install.py", line 466, in install_solc
raise exc
File "solcx/install.py", line 459, in install_solc
_validate_installation(version, solcx_binary_path)
File "solcx/install.py", line 636, in _validate_installation
raise SolcInstallationError(
SolcInstallationError: Downloaded binary would not execute, or returned unexpected output. If this issue persists, you can try to compile from source code using solcx.compile_solc('0.4.26')

ValueError: Gas estimation failed

Running 'scripts/advanced_collectible/create_collectible.py::main'...
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/advanced_collectible/create_collectible.py", line 9, in main
    transaction = advanced_collectible.createCollectible("None", {"from":dev})
  File "brownie/network/contract.py", line 1693, in __call__
    return self.transact(*args)
  File "brownie/network/contract.py", line 1566, in transact
    return tx["from"].transfer(
  File "brownie/network/account.py", line 642, in transfer
    receipt, exc = self._make_transaction(
  File "brownie/network/account.py", line 725, in _make_transaction
    raise VirtualMachineError(e) from None
  File "brownie/exceptions.py", line 121, in __init__
    raise ValueError(str(exc)) from None
ValueError: Gas estimation failed: 'execution reverted'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

This is the error I was getting and I went to check that my wallet was funded with ETH and it was.

Issue with SafeMath?

Hi, I am following the tutorial below:

https://www.freecodecamp.org/news/how-to-make-an-nft-and-render-on-opensea-marketplace/

Everything was running smoothly until I ran the following command:

brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby

Here is the error message from the output:

Compiling contracts...
  Solc version: 0.6.12
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
CompilerError: solc returned the following errors:

contracts/test_contracts/mocks/MockOracle.sol:7:1: ParserError: Source "/Users/me/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.6/vendor/SafeMath.sol" not found: File not found.
import "@chainlink/contracts/src/v0.6/vendor/SafeMath.sol";
^---------------------------------------------------------^

I tried moving forward with the next commands from the tutorial but got the same error. This was no surprise since there was no SafeMath.sol file in that directory as the error points out.

My next attempt was to download the SafeMath.sol file for v0.6. and manually place it in there. When I tried this, however, I got the following error:

Compiling contracts...
  Solc version: 0.4.24
  Optimizer: Enabled  Runs: 200
  EVM Version: Byzantium
CompilerError: solc returned the following errors:

contracts/test_contracts/Oracle.sol:4:1: ParserError: Source "/Users/me/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.4/vendor/SafeMath.sol" not found: File not found.
import "@chainlink/contracts/src/v0.4/vendor/SafeMath.sol";
^---------------------------------------------------------^

Notice that the above error is exactly the same, but now it's trying to use version 0.4 which seems odd to me. It sounds like the SafeMath library has caused some Solidity issues in the past, and that is likely part of the reason for excluding it from v0.8 (https://soliditydeveloper.com/solidity-0.8). Could be unrelated since I'm using v0.6.12, but just wanted to mention it.

Any help would be appreciated, thanks!

Gas estimation failed

After adding my private key and project id on .env file it's works perfectly yesterday but suddenly i got the an error "Gas estimation failed: 'invalid opcode: opcode 0xfe not defined'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually." after running deploy file.
(brownie run scripts/advanced_collectible/deploy_advanced.py --network rinkeby)

AttributeError: Contract 'SimpleCollectible' object has no attribute 'createCollectible'

I'm receiving this error:

Running 'scripts/simple_collectible/create_collectible.py::main'...
rinkeby
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/simple_collectible/create_collectible.py", line 13, in main
    transaction = simple_collectible.createCollectible(sample_token_uri, {"from": dev})
  File "brownie/network/contract.py", line 832, in __getattribute__
    raise AttributeError(f"Contract '{self._name}' object has no attribute '{name}'")
AttributeError: Contract 'SimpleCollectible' object has no attribute 'createCollectible'

This is my SimpleCollectible.sol file:

pragma solidity 0.6.6;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract SimpleCollectible is ERC721 {
    uint256 public tokenCounter;
    constructor () public ERC721 ("Dogie", "DOG"){
        tokenCounter = 0;
    }

    function createCollectible(string memory tokenURI) public returns (uint256) {
        uint256 newItemId = tokenCounter;
        _safeMint(msg.sender, newItemId);
        _setTokenURI(newItemId, tokenURI);
        tokenCounter = tokenCounter + 1;
        return newItemId;
    }

}

Issue with infura

when I run this command, I get this error

brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby

File "brownie/network/web3.py", line 171, in _expand_environment_vars
raise ValueError(f"Unable to expand environment variable in host setting: '{uri}'")
ValueError: Unable to expand environment variable in host setting: 'https://rinkeby.infura.io/v3/$WEB3_INFURA_PROJECT_ID

I have setup the WEB3_INFURA_PROJECT_ID and PRIVATE_KEY in .env file but got above issue

issue with: brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby

I get the exact error on windows, ubuntu (via console from microsoft store) and even ubuntu via a virtual machine:

does anyone know what i'm doing wrong?

nathan@nathan-VirtualBox:~/Documents/coding/nft/PatrickAlphaC/nft$ brownie run scripts/simple_collectible/deploy_simple.py --network rinkeby
Brownie v1.14.6 - Python development framework for Ethereum

Compiling contracts...
  Solc version: 0.6.6
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
Generating build data...
 - OpenZeppelin/[email protected]/ERC165
 - OpenZeppelin/[email protected]/IERC165
 - OpenZeppelin/[email protected]/SafeMath
 - OpenZeppelin/[email protected]/ERC721
 - OpenZeppelin/[email protected]/IERC721
 - OpenZeppelin/[email protected]/IERC721Enumerable
 - OpenZeppelin/[email protected]/IERC721Metadata
 - OpenZeppelin/[email protected]/IERC721Receiver
 - OpenZeppelin/[email protected]/Address
 - OpenZeppelin/[email protected]/Context
 - OpenZeppelin/[email protected]/EnumerableMap
 - OpenZeppelin/[email protected]/EnumerableSet
 - OpenZeppelin/[email protected]/Strings
 - smartcontractkit/[email protected]/VRFConsumerBase
 - smartcontractkit/[email protected]/VRFRequestIDBase
 - smartcontractkit/[email protected]/LinkTokenInterface
 - smartcontractkit/[email protected]/SafeMathChainlink
 - AdvancedCollectible
 - SimpleCollectible
 - VRFCoordinatorMock

Compiling contracts...
  Solc version: 0.6.12
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
Generating build data...
 - smartcontractkit/[email protected]/LinkTokenReceiver
 - smartcontractkit/[email protected]/AggregatorInterface
 - smartcontractkit/[email protected]/AggregatorV2V3Interface
 - smartcontractkit/[email protected]/AggregatorV3Interface
 - smartcontractkit/[email protected]/ChainlinkRequestInterface
 - smartcontractkit/[email protected]/LinkTokenInterface
 - smartcontractkit/[email protected]/SafeMathChainlink
 - MockOracle
 - MockV3Aggregator

Compiling contracts...
  Solc version: 0.4.26
  Optimizer: Enabled  Runs: 200
  EVM Version: Byzantium
Generating build data...
 - smartcontractkit/[email protected]/ERC677Token
 - smartcontractkit/[email protected]/ERC20
 - smartcontractkit/[email protected]/ERC20Basic
 - smartcontractkit/[email protected]/ERC677
 - smartcontractkit/[email protected]/ERC677Receiver
 - smartcontractkit/[email protected]/BasicToken
 - smartcontractkit/[email protected]/SafeMathChainlink
 - smartcontractkit/[email protected]/StandardToken
 - LinkToken

Generating interface ABIs...
NftProject is the active project.

Running 'scripts/simple_collectible/deploy_simple.py::main'...
  File "brownie/_cli/run.py", line 49, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/simple_collectible/deploy_simple.py", line 10, in main
    dev = accounts.add(config["wallets"]["from_key"])
  File "brownie/network/account.py", line 132, in add
    w3account = web3.eth.account.from_key(private_key)
  File "eth_utils/decorators.py", line 18, in _wrapper
    return self.method(obj, *args, **kwargs)
  File "eth_account/account.py", line 246, in from_key
    key = self._parsePrivateKey(private_key)
  File "eth_utils/decorators.py", line 18, in _wrapper
    return self.method(obj, *args, **kwargs)
  File "eth_account/account.py", line 694, in _parsePrivateKey
    return self._keys.PrivateKey(HexBytes(key))
  File "hexbytes/main.py", line 23, in __new__
    bytesval = to_bytes(val)
  File "hexbytes/_utils.py", line 17, in to_bytes
    return hexstr_to_bytes(val)
  File "hexbytes/_utils.py", line 50, in hexstr_to_bytes
    return binascii.unhexlify(ascii_hex)
Error: Non-hexadecimal digit found

The metadata of SHIBA_INU

{
"name": "PUG",
"description": "An adorable SHIBA_INU pup!",
"image": "https://ipfs.io/ipfs/QmYx6GsYAKnNzZ9A6NvEKV9nf1VaDzJrqDR23Y8YSkebLU?filename=shiba-inu.png",
"attributes": [
{
"trait_type": "cuteness",
"value": 100
}
]
}

The name field value here should be SHIBA_INU, right?

Deploy on mainnet

Hello everybody.
I just would like to know how to deploy the simple contract on OpenSea main net ?
All is working on testnet.
Thank you