初始化vue项目，报错This is probably not a problem with npm,there is likely additional logging output above

https://blog.csdn.net/ink_if/article/details/79015811

参考别人的博客

初始化项目，vue init webpack-simple demo 然后npm install 再然后npm run dev 就报错了，最后找出是版本更新原因， 
解决方案： 
npm install之后，运行 npm i -D webpack-dev-server@2.9.7