npm install -g n 报错

Question

为了更新nodejs安装n模块，但是报了如下错误，这是为什么呢？C:\Windows\System32>npm i -g nnpm ERR! Windows_NT 6.1.7601npm ERR! argv "C:\\node.exe" "C:\\node_modules\\npm\\bin\\npm-cli.js" "i" "-g"n"npm ERR! node v6.11.0npm ERR! npm  v3.10.10npm ERR! code EBADPLATFORMnpm ERR! notsup Unsupported platform for n@2.1.7: wanted {"os":"!win32","arch":any"} (current: {"os":"win32","arch":"x64"})npm ERR! notsup Valid OS:    !win32npm ERR! notsup Valid Arch:  anynpm ERR! notsup Actual OS:   win32npm ERR! notsup Actual Arch: x64npm ERR! Please include the following file with any support request:npm ERR!     C:\Windows\System32\npm-debug.log