Cannot find module 'passport'

[kannandevan]

D:\tuts\login>node app module.js:540 throw err; ^

Error: Cannot find module 'passport' at Function.Module._resolveFilename (module.js:538:15) at Function.Module._load (module.js:468:25) at Module.require (module.js:587:17) at require (internal/module.js:11:18) at Object. (D:\tuts\login\app.js:5:16) at Module._compile (module.js:643:30) at Object.Module._extensions..js (module.js:654:10) at Module.load (module.js:556:32) at tryModuleLoad (module.js:499:12) at Function.Module._load (module.js:491:3) at Function.Module.runMain (module.js:684:10) at startup (bootstrap_node.js:187:16) at bootstrap_node.js:608:3