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
