npm install socket.io 问题，安装不成功,报了ERR,不哪出问题了。

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" "socket.io"
npm ERR! node v6.11.3
npm ERR! npm v3.10.10
npm ERR! code ENOSELF

npm ERR! Refusing to install socket.io as a dependency of itself
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR! https://github.com/npm/npm/issues

npm ERR! Please include the following file with any support request:
npm ERR! E:\websocket\socket\npm-debug.log

http://blog.csdn.net/jian1jian_/article/details/53884087