摘要：
使用npm安装socket.io时遇到如下错误：npm ERR! Error: Invalid protocolnpm ERR! at Request.init (/opt/nodejs/lib/node_modules/npm/node_modules/request/main.js:308:31)npm ERR! at new Request (/opt/nodejs/lib/node_modules/npm/node_modules/request/main.js:103:8)npm ERR! at request (/opt/nodejs/lib/node_mo... 阅读全文
