title: Unable to integrate twitter login using Twitter+OAuth?
body: <p>I’m building an app where i want to implement twitter login.I want to fetch user basic profile Information.
  I am trying to integrate twitter functionality using Twitter outh library <a href="https://github.com/bengottlieb/Twitter-OAuth-iPhone" rel="nofollow">https://github.com/bengottlieb/Twitter-OAuth-iPhone</a>.</p>
  
  <p>And i found an tutorial on youtube <a href="https://www.youtube.com/watch?v=MlGI_vB0--o" rel="nofollow">https://www.youtube.com/watch?v=MlGI_vB0--o</a> 
  which helps me how to integrate twitter into your project using above library,But problem is when i add the
  Twitter+OAuth into my project it gives an error.</p>
  
  <pre><code>Error:/Users/rohit/Desktop/Master/Twitter+OAuth/MGTwitterEngine/MGTwitterEngineGlobalHeader.h:17:10: 'Cocoa/Cocoa.h' file not found
  </code></pre>
  
  <p>How can i handle this error,help is appreciated.</p>