package.json中報錯的webpack版本:
"webpack": "^5.19.0",
"webpack-cli":"^4.4.0",
"webpack-dev-server":"3.11.2",
npx webpack-dev-server:報錯:
Error:Cannot find module "webpack-cli/bin/config-yargs"
原因webpack-cli 4.4.0與webpack-dev-server 3.11.2不兼容。后者為其目前最高版本
解決方案：
卸載webpack-cli 4.4.0, 安裝webpack 3.3.12（3.X最高版本）
npm uninstall webpack-cli
npm install --save-dev webpack-cli@3.3.12