H:\Workspaces\IDEAWorkspace\vue-meituan>npm run dev
> [email protected] dev H:\Workspaces\IDEAWorkspace\vue-meituan
> cross-env NODE_ENV=development node build/dev-server.js
'cross-env' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] dev: `cross-env NODE_ENV=development node build/dev-server.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\hepo\AppData\Roaming\npm-cache\_logs\2018-04-27T07_05_04_052Z-debug.logyin需要先安装，对应目录下命令行：npm install
参考：博客