在git中执行npm run dev启动项目，显示错误？

Question

node和npm的版本是出错的信息是：在浏览器中显示是Cannot GET / 这个我是直接用的npm install 像错误信息中的css-loader我已经下载好了，但是执行npm run dev还是报这个错误请问这是为什么呢？怎么解决呢？

Answer 1

试试把node_modules删了，重新cnpm insatll一下

Answer 2

css-loader 用cnpm下载貌似会出问题的，得单独用npm去下载css-loader

Answer 3

It looks like you're missing a peerDependency, this could be because you upgraded from NPM 2 or it could just be that something went wrong with the installation, so simply do:

npm install css-loader --save-dev

If all else fails, simply remove node_modules from your project and do a fresh install: npm install
——————from stackflow