npm ERR! missing script: dev，npm ERR! missing script: build, npm ERR! missing script: start

cmd进入项目文件夹，输入 vue init webpack  将package.json中丢失的：

   "dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
    "start": "npm run dev",
    "build": "node build/build.js"

 

从新下载过来，而后在cnpm intall 安装依赖，最后 cnpm run dev便可

也适用于解决start, build 丢失