将 npm 升级到最新版本或使用命令提示符安装 grunt 时，我收到以下异常。
C:\Users\username>npm install npm@latest
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\
node_modules\\npm\\bin\\npm-cli.js" "install" "npm@latest"
npm ERR! node v4.4.5
npm ERR! npm v2.15.5
npm ERR! code ETIMEDOUT
npm ERR! errno ETIMEDOUT
npm ERR! syscall connect
npm ERR! network connect ETIMEDOUT 103.245.222.162:443
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 settin
gs.
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:\Users\username\npm-debug.log
我尝试了以下命令来安装最新版本的npm
npm install npm@latest
安装grunt
npm install -g grunt-cli
对于两者，我收到上述错误。有人可以帮我解决这个问题。
更新
我尝试了以下内容。我已配置代理地址，然后尝试安装grunt。
对于HTTP：
npm config set proxy http://proxy_host:port
对于HTTPS：
npm config set https-proxy http://proxy.company.com:8080
但是，它仍然显示相同的错误。
答案 0 :(得分：0)
这个问题解决了我的问题。
npm config set registry "http://registry.npmjs.org/"
然后，安装了grunt并且它工作了！