想看Stack Overflow的话：链接
webpack-dev-server
当在Terminal运行 npx webpack-dev-server的时候出现这种Error！
Error: Cannot find module 'webpack-cli/bin/config/config-yargs' Require stack: - D:\webpack workspace\test5\node_modules\webpack-dev-server\bin\webpack-dev-server.js at Object.<anonymous> (D:\webpack workspace\test5\node_modules\webpack-dev-server\bin\webpack-dev-server.js:65:1) code: 'MODULE_NOT_FOUND', requireStack: [ 'D:\\webpack workspace\\test5\\node_modules\\webpack-dev-server\\bin\\webpack-dev-server.js' ]Error: Cannot find module 'webpack-cli/bin/config/config-yargs'
是不是很头痛，当初我试了很多方式但是还是行不通！
现在我给大家分享一下方法：
首先我先序列一下代码部分
package.json
{ "name": "test5", "version": "1.0.0", "description": "", "main": "webpack.config.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "build": "webpack", "start:dev": "webpack-dev-server", "dev": "webpack serve" }, "author": "", "license": "ISC", "devDependencies": { "css-loader": "^5.0.0", "file-loader": "^6.1.1", "html-webpack-plugin": "^4.5.0", "style-loader": "^2.0.0", "url-loader": "^4.1.1", "webpack": "^5.1.3", "webpack-cli": "^4.1.0", "webpack-dev-server": "^3.11.0" }, "dependencies": {} }webpack.config.js
const {resolve} = require('path'); const HtmlWebpackPlugin = require('html-webpack-plugin'); module.exports = { entry: './src/index.js', output: { filename: 'built.js', path: resolve(__dirname, 'build') }, module: { rules: [ { test: /\.css$/, use: ['style-loader', 'css-loader'] }, { exclude: /\.(js|html|css)$/, loader: 'file-loader', // // options: { // name:'[hash:10].[ext]' // } } ] }, plugins: [ new HtmlWebpackPlugin({ template: './src/webpack.html' }) ], mode: 'development', //devServer devServer: { // 项目构建后路径 contentBase: resolve(__dirname, 'build'), // 启动gzip压缩 compress: true, // 端口号 port: 3080, // 自动打开浏览器 open: true } };核心代码部分也写完了，在package.json所示安装的都是最新版本的Library
所以版本问题首先是排除！
解决方法
1.(第一种方法)
package.json里的scripts改一下
"start:dev": "webpack-dev-server",改成
"dev": "webpack serve"好了然后就是按原来的方法一样npm run dev
okay! Congratulations!
2.（第2种方法）
之前我们运行的时候是
npx webpack-dev-server来执行的
但是结果一直显示Module not found
So, 我们改一下形式就行
npx webpack serve
okay! Congratulations!
*.*有不会的地方，可以留言*.*