title: How can i run "node index.js" in ubuntu
body: <p>This has been created in windows environment how can run it into a ubuntu environment.</p>
  
  <pre>
  stayinc/server$ node index.js 
  
  util.js:538
    ctor.prototype = Object.create(superCtor.prototype, {
                                            ^
  TypeError: Cannot read property 'prototype' of undefined
      at Object.exports.inherits (util.js:538:43)
      at Object. (/media/subhasis/3C92D33592D2F27E/LocalProject/stayinc/server/node_modules/mongodb/lib/gridfs-stream/download.js:46:6)
      at Module._compile (module.js:449:26)
      at Object.Module._extensions..js (module.js:467:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:312:12)
      at Module.require (module.js:362:17)
      at require (module.js:378:17)
      at Object. (/media/subhasis/3C92D33592D2F27E/LocalProject/stayinc/server/node_modules/mongodb/lib/gridfs-stream/index.js:2:30)
      at Module._compile (module.js:449:26)
  </pre>