events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: listen EADDRINUSE
    at errnoException (net.js:904:11)
    at Server._listen2 (net.js:1042:14)
    at listen (net.js:1064:10)
    at Server.listen (net.js:1138:5)
    at Server.listen.Server.attach (/usr/share/nginx/plussocial/nodejs/node_modules/socket.io/lib/index.js:214:9)
    at new Server (/usr/share/nginx/plussocial/nodejs/node_modules/socket.io/lib/index.js:51:17)
    at Function.Server (/usr/share/nginx/plussocial/nodejs/node_modules/socket.io/lib/index.js:39:41)
    at Object.<anonymous> (/usr/share/nginx/plussocial/nodejs/server.js:1:93)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)