socket.io安装

官网安装地址

npm install socket.io

安装失败可尝试在cmd安装一下安装包

npm install base64id@0.1.0
npm install policyfile@0.0.4
npm install redis@0.7.3
npm install socket.io-client@0.9.16
npm install xmlhttprequest@1.4.2
npm install uglify-js@1.2.5
npm install active-x-obfuscator@0.0.1
npm install ws@0.4.27
npm install tinycolor@0.0.1
npm install options@0.0.5
npm install commander@0.6.1
npm install ws@0.4.27
npm install ws@0.4.27
npm install socket.io
npm list

原文：http://www.cnblogs.com/weipeng007/p/4662791.html