vue npm run dev报错webpack-dev-server

在运行vue项目时报如下问题：

E:mobile_realmobile-vue>npm run dev

> mobile_real@1.0.0 dev E:mobile_realmobile-vue

> webpack-dev-server --inline --progress --config build/webpack.dev.conf.js

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! mobile_real@1.0.0 dev: `webpack-dev-server --inline --progress --config build/webpack.dev.conf.js`

npm ERR! Exit status 1

npm ERR!

npm ERR! Failed at the mobile_real@1.0.0 dev script.

npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:

npm ERR!     C:UsersFKT00120AppDataRoaming pm-cache\_logs2019-05-27T01_45_54_024Z-debug.log

查阅资料发现是webpack新版bug，卸载现有webpack，安装老版本即可

解决办法：

1、npm uninstall webpack-dev-server

2、npm install webpack-dev-server@2.9.1

3、npm run dev