npm ERR! C:\Users\xxxxxx\AppData\Roaming\npm-cache\_logs\2019-02-27T07_48_47_283Z-debug.log
"https://registry.npmjs.org/lazy-debug/-/lazy-debug-0.0.3.tgz",
解决方案：https://blog.csdn.net/namechenfl/article/details/83444031
C:\Users\用户名\.npmrc 删除——重启
https://newsn.net/say/npm-whereis.html