Standard ERC-721 "name" and "symbol" function error with Cancun EVM about solidity HOT 3 CLOSED

This looks like you are using version 0.8.25, which sets the target to cancun by default, and uses mcopy, but you try to run the contract on a non-cancun chain (that doesn't support this opcode).

Said otherwize, the issue is not in the compiler itself, but in the fact that you use a recent version of the compiler with an older version of the EVM.

Since you are using Remix, you should make sure that you use Remix VM (Cancun) selected. Note: it doesn't work on my machine, maybe a remix bug.

An alternative is to set the target to an older version of the EVM (shanghai or earlier)

from solidity.

this currently also happens to anyone running geth --dev because it does not have cancun support yet, unfortunately.

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@developer-decuple Thanks for raising this here. Howerver, as described by @Amxx and @q9f in their comments, this is not a bug in the compiler but rather an issue with Remix and Geth.

For further support, consider reporting this to the respective projects.

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