我的环境是这样的:

React => v17 React脚本=> v5 Webpack => v5

要解决这个问题，请遵循下面的说明

1-安装以下软件包

yarn add fs assert https-browserify os os-browserify stream-browserify stream-http react-app-rewired

2-在项目根目录下package.json旁边创建config-coverrides.js

添加以下代码:

const webpack = require('webpack'); module.exports = function override(config, env) { config.resolve.fallback = { url: require.resolve('url'), fs: require.resolve('fs'), assert: require.resolve('assert'), crypto: require.resolve('crypto-browserify'), http: require.resolve('stream-http'), https: require.resolve('https-browserify'), os: require.resolve('os-browserify/browser'), buffer: require.resolve('buffer'), stream: require.resolve('stream-browserify'), }; config.plugins.push( new webpack.ProvidePlugin({ process: 'process/browser', Buffer: ['buffer', 'Buffer'], }), ); return config; }

3-像下面这样修改packages.js

"脚本":{ “start”:“react-app-rewired start”， “build”:“react-app-rewired build”， “test”:“react-app-rewired test” "eject": "react-app-rewired eject" }，

我想这里的大部分答案都能解决你的问题。然而，如果你的节点开发不需要Polyfills，那么我建议在Webpack模块配置中使用target: 'node'。这帮我解决了这个问题。

这里有一些关于答案的文档:https://webpack.js.org/concepts/targets/

当我重新安装节点模块时，我的webpack当前版本是5.38.1，我已经修复了这个问题 安装后，你必须更新你的webpack.config.js resolve{} with 回退:{"fs": false， "path": require.resolve("path-browserify")}而不使用"fs": false它显示错误，即:模块未找到:错误:无法解析'fs'在'/YOUR DIRECTORY…' 所以别忘了加上它;与其他东西看起来像:

module.exports = {
   ...
   resolve: {
    extensions: [".js", ".jsx", ".json", ".ts", ".tsx"],// other stuff
    fallback: {
      "fs": false,
      "path": require.resolve("path-browserify")
    }
  },
};

如果你的webpack.config.js文件中存在node属性，删除它

当从webpack v4升级到v5时，我也得到了这些错误。 通过对webpack.config.js进行以下更改来解决

添加的决心。回退财产

删除节点属性

{
resolve: {
  modules: [...],
  fallback: {
    "fs": false,
    "tls": false,
    "net": false,
    "path": false,
    "zlib": false,
    "http": false,
    "https": false,
    "stream": false,
    "crypto": false,
    "crypto-browserify": require.resolve('crypto-browserify'), //if you want to use this module also don't forget npm i crypto-browserify 
  } 
},
entry: [...],
output: {...},
module: {
  rules: [...]
},
plugins: [...],
optimization: {
  minimizer: [...],
},
// node: {
//   fs: 'empty',
//   net: 'empty',
//   tls: 'empty'
// },
}

从v4升级到v5 => https://webpack.js.org/migrate/5/#clean-up-configuration

你想用在

const nodeExternals = require('webpack-node-externals');

在webpack.config.js中添加

target: "node",
devtool: "source-map",
externals: [nodeExternals()],

我的环境是这样的:

React => v17 React脚本=> v5 Webpack => v5

要解决这个问题，请遵循下面的说明

1-安装以下软件包

yarn add fs assert https-browserify os os-browserify stream-browserify stream-http react-app-rewired

2-在项目根目录下package.json旁边创建config-coverrides.js

添加以下代码:

const webpack = require('webpack'); module.exports = function override(config, env) { config.resolve.fallback = { url: require.resolve('url'), fs: require.resolve('fs'), assert: require.resolve('assert'), crypto: require.resolve('crypto-browserify'), http: require.resolve('stream-http'), https: require.resolve('https-browserify'), os: require.resolve('os-browserify/browser'), buffer: require.resolve('buffer'), stream: require.resolve('stream-browserify'), }; config.plugins.push( new webpack.ProvidePlugin({ process: 'process/browser', Buffer: ['buffer', 'Buffer'], }), ); return config; }

3-像下面这样修改packages.js

"脚本":{ “start”:“react-app-rewired start”， “build”:“react-app-rewired build”， “test”:“react-app-rewired test” "eject": "react-app-rewired eject" }，