npm安裝任何包都報錯的解決辦法

不知道什么原因，安裝nodejs后，用npm安裝任何東西都報錯：

C:\Users\Administrator>npm install express 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" "express" npm ERR! node v4.4.4 npm ERR! npm v2.15.1 npm ERR! code ENOTFOUND npm ERR! errno ENOTFOUND npm ERR! syscall getaddrinfo npm ERR! network getaddrinfo ENOTFOUND xn--rvg xn--rvg:80 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! C:\Users\Administrator\npm-debug.log 

然后查npm的配置，也是一臉懵逼

C:\Users\Administrator>npm config ls
; cli configs
user-agent = "npm/2.15.1 node/v4.4.4 win32 x64"

; userconfig C:\Users\Administrator\.npmrc
disturl = "https://npm.taobao.org/dist"
proxy = "http://xn--rvg/"
registry = "http://registry.npmjs.org/"
strict-ssl = false
unsafe-perm = true

; builtin config undefined
cache = "C:\\Program Files\\nodejs\\node_global"
prefix = "C:\\Program Files\\nodejs\\node_global"

; node bin location = C:\Program Files\nodejs\node.exe
; cwd = C:\Users\Administrator
; HOME = C:\Users\Administrator
; 'npm config ls -l' to show all defaults.

根據網上的教程，換了N種鏡像，問題依舊存在

然后終於在網上找到個解決辦法：

解決辦法：

1、執行： npm config get proxy npm config get https-proxy 如果返回值不為null，繼續執行： （這一步很重要，一定要保證兩個命令的返回值都為null,話說回來，應該出現這個錯誤這兩個返回值有不為null的） npm config set proxy null npm config set https-proxy null 2、執行： npm config set registry http://registry.cnpmjs.org/ 

然后你就可以愉快的安裝cnpm了

npm install -g cnpm --registry=https://registry.npm.taobao.org 

然后你就可以更加愉快的用cnpm安任何東西了