运行npm run dev遇到的问题：

Error: Cannot find module ‘webpack-cli/bin/config-yargs’

// 当前package.json 文件
​
"devDependencies": {
    "webpack": "^5.2.0",
    "webpack-cli": "^4.1.0",
    "webpack-dev-server": "^3.11.0"
}

解决：

卸载当前的 webpack-cli npm uninstall webpack-cli

安装 webpack-cli 3.* 版本 npm install [email protected] -D

webpack-dev-server ^3 需要安装webpack-cli ^3

// package.json文件
​
"devDependencies": {
    "webpack": "^5.2.0",
    "webpack-cli": "^3.3.12",
    "webpack-dev-server": "^3.11.0"
}