使用node-polyfill-webpack-plugin重新添加对Node.js核心模块的支持:

安装包后，将以下内容添加到webpack.config.js中:

const NodePolyfillPlugin = require("node-polyfill-webpack-plugin")

module.exports = {
    // Other rules...
    plugins: [
        new NodePolyfillPlugin()
    ]
}

使用node-polyfill-webpack-plugin重新添加对Node.js核心模块的支持:

安装包后，将以下内容添加到webpack.config.js中:

const NodePolyfillPlugin = require("node-polyfill-webpack-plugin")

module.exports = {
    // Other rules...
    plugins: [
        new NodePolyfillPlugin()
    ]
}

对于我(使用React => v17;React脚本=> v5;webpack => v5)，由@Letton和@Richie Bendall建议的解决方案组合与另一个附加，即包一起工作。Json中，必须添加并安装以下包。还请注意fs版本“^2.0.0”抛出一个错误，因此更改为“0.0.1-security”。

"assert": "^2.0.0", 
"https-browserify": "^1.0.0", 
"os": "^0.1.2",
"os-browserify": "^0.3.0",
"react-app-rewired": "^2.1.9",
"stream-browserify": "^3.0.0",
"stream-http": "^3.2.0",
"fs":"^0.0.1-security",
"crypto-browserify": "3.12.0",
"buffer":"^6.0.3",
"node-polyfill-webpack-plugin": "^2.0.1"

安装完这些后，执行剩下的步骤，即将config-override .js添加到根目录，并更改包中的脚本内容。从react-scripts到react-app-rewired的Json修复了这个问题。

你需要React => v17 React脚本=> v5 webpack => v5

解决问题

1)安装

"fs": "^2.0.0",  // npm i fs
"assert": "^2.0.0",  // npm i assert
"https-browserify": "^1.0.0", // npm i https-browserify
"os": "^0.1.2", // npm i os
"os-browserify": "^0.3.0", // npm i os-browserify
"react-app-rewired": "^2.1.9", //npm i react-app-rewired
"stream-browserify": "^3.0.0", // stream-browserify
"stream-http": "^3.2.0", //stream-http

2)在根目录下创建config-override .js 图像

3)在config-override .js中添加配置

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)更改packages.json

"scripts": {
  "start": "react-app-rewired start",
  "build": "react-app-rewired build",
  "test": "react-app-rewired test",
  "eject": "react-app-rewired eject"
}

问题解决了:)

我的问题是，我试图使用JSON。解析，然后当我开始写，自动完成显示我json(注意小字母)，尽管我重命名为json。当我按回车键时，它自动导入 (import {json} from "express/lib/response";) 这是原因，我根本没有注意到，在后来的开发过程中，我的应用程序非常糟糕，我花了大约6个小时才注意到这一点，因为应用程序相当大。

所以如果上面的解决方案都不起作用，看看你是否没有导入一些东西。

我的VUE解决方案

const { defineConfig } = require('@vue/cli-service')
const webpack = require('webpack');
module.exports = defineConfig({
  configureWebpack: {
    plugins: [
      new webpack.ProvidePlugin({
        Buffer: ['buffer', 'Buffer'],
      }),
      new webpack.ProvidePlugin({
          process: 'process/browser',
      })
    ],
    resolve: {
      fallback: {
        "os": require.resolve("os-browserify/browser"),
        "url": require.resolve("url/"),
        "crypto": require.resolve("crypto-browserify"),
        "https": require.resolve("https-browserify"),
        "http": require.resolve("stream-http"),
        "assert": require.resolve("assert/"),
        "stream": require.resolve("stream-browserify"),
        "buffer": require.resolve("buffer")
      }
    }
  },

  transpileDependencies: [
    'vuetify'
  ]

})