Comments (14)
sebmck
commented on May 11, 2024
You most likely have a 4.x babel-runtime. Please remove your node_modules folder and npm install again.
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euforic
commented on May 11, 2024
@sebmck tried that already and also did a npm cache clean
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sebmck
commented on May 11, 2024
Not sure what's causing this then:
$ node
> require("babel-runtime/core-js")["default"].Object.defineProperty
[Function: defineProperty]
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euforic
commented on May 11, 2024
@sebmck I think the problem might be a compatibility issue with iojs. Switched to node 0.12.x and it works now.
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sebmck
commented on May 11, 2024
$ iojs
> require("babel-runtime/core-js")["default"].Object.defineProperty
[Function: defineProperty]
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euforic
commented on May 11, 2024
@sebmck never mind It's still happening in both. I still get the error with the simple example below, but if I remove the constructor function the error is gone.
- babel-loader: 5.0.0
- babel-core: 5.1.10
- babel-runtime: 5.1.10
- react: 0.13.1
index.js
import React from 'react';
class MyComponent extends React.Component {
constructor(props) {
super(props);
}
render() {
return <div> test </div>;
}
}
React.render(<MyComponent/>, document.getElementById('main'));index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Bug Example</title>
<meta name="description" content="">
<script src='//cdnjs.cloudflare.com/ajax/libs/react/0.13.1/react.js'></script>
</head>
<body>
<div id="main"></div>
<script type="text/javascript" src="/bundle.js"></script>
</body>
</html>webpack.config.js
var webpack = require('webpack');
module.exports = {
entry: {
app: './index.js'
},
output: {
path: './build',
filename: 'bundle.js',
publicPath: '/'
},
devtool: 'inline-source-maps',
module: {
loaders: [
{ test: /\.(js|jsx)$/, loader: 'babel?stage=0&optional=runtime', exclude:['node_modules'] }
]
},
externals: {
react: 'React',
},
resolve: {
extensions: ['', '.js', '.jsx']
}
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euforic
commented on May 11, 2024
here is a jsfiddle to demo the error https://jsfiddle.net/euforic/5vjqabv3/474/
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sebmck
commented on May 11, 2024
Can you verify that you're using the latest babel-runtime please. cc @zloirock
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zloirock
commented on May 11, 2024
@sebmck emm? In last example I don't see core-js, only helpers.
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sebmck
commented on May 11, 2024
@zloirock Look at the jsfiddle, the error is being thrown on the line module.exports = __webpack_require__(10).core.Object.keys;.
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zloirock
commented on May 11, 2024
Interesting. I don't test it with webpack. I will investigate the problem in the evening.
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zloirock
commented on May 11, 2024
Looks like bug it config. Webpack run runtime transformer on core-js files.
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sebmck
commented on May 11, 2024
Try changing your exclude filter to /node_modules/.
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euforic
commented on May 11, 2024
@sebmck yep that fixes it. Thanks for all the help!
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