安装webpack-dev-server 时候,必须在本地安装根目录从新安装 webpack 跟webpack-cli,全局安装不行
npm install webpack-dev-server --save-dev
npm install -D webpack
npm install -D webpack-cli,
安装webpack-dev-server 时候,必须在本地安装根目录从新安装 webpack 跟webpack-cli,全局安装不行
npm install webpack-dev-server --save-dev
npm install -D webpack
npm install -D webpack-cli,