首先是这个报错，所有的npm install操作全都报错了，

报错信息为

npm ERR! Windows_NT 10.0.14393

npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "hexo"

npm ERR! node v6.11.5

npm ERR! npm  v3.10.10

npm ERR! code ETIMEDOUT

npm ERR! errno ETIMEDOUT

npm ERR! syscall connect

npm ERR! network connect ETIMEDOUT 151.101.196.162:443

npm ERR! network This is most likely not a problem with npm itself

npm ERR! network and is related to network connectivity.

npm ERR! network In most cases you are behind a proxy or have bad network settings.

npm ERR! network

npm ERR! network If you are behind a proxy, please make sure that the

npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! Please include the following file with any support request:

npm ERR!    D:\myblog\npm-debug.log

最后搜了好久在stackoverflow上找到的答案

npm config set proxy false

npm cache clean

执行这两行即可，效果是清楚代理和缓存

原文地址stackoverflow