创建 React App 生产构建运行时错误:无法读取未定义的属性“调用" [英] Create React App production build runtime error: Cannot read property 'call' of undefined

问题描述

我有一个 CRA 项目，当我在开发中使用 react-scripts start 时运行良好.但是一旦我构建 react-scripts build 然后提供这些文件，我就会收到这个错误未捕获的类型错误:无法读取未定义的属性调用"

I have a CRA project that runs fine when i use react-scripts start in development. But once I build react-scripts build and then serve these files, I get this error Uncaught TypeError: Cannot read property 'call' of undefined

我没有任何自定义的 webpack 配置.我尝试对大量源代码进行注释，但在尝试提供构建文件时仍然出现此错误.

I dont have any custom webpack config. I've tried to comment large areas of source code, and I still get this error trying to serve the build files.

感谢您的帮助！

推荐答案

我找到了这个答案，它解决了这个问题.https://stackoverflow.com/a/58628185/5231665
我只需要将它添加到 react-scripts webpack.config.js

I found this answer, and it solved the issue. https://stackoverflow.com/a/58628185/5231665
I just had to add this to the react-scripts webpack.config.js

optimization: {
    sideEffects: false,// <----- in production defaults to true if left blank
}

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