Can't see socket.io, what could be the problem?

Question

Node.js

Installed node.js on CentOS 6 and then socket.io via npm install socket.io. When trying to connect it to any project, it gives an error that socket.io was not found. What is the matter and how to solve the problem?

module.js:340
    throw err;
          ^
Error: Cannot find module 'socket.io'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/url/ig_socket.js:2:10)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)

Answer 1

Have you installed the module globally?
npm install -g socket.io