npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! my-project@1.0.0 dev: `webpack-dev-server --inline --progress --config build/`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the my-project@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:\Users\Y\AppData\Roaming\npm-cache\_logs\2019-08-08T07_53_59_619Z
解决方法如下：
更改config文件夹下的中的host地址即可
host: 'localhost'