title: Facebook Registration : The operation couldn't be completed (com.facebook.sdk error 2)
body: <p>I am developing an ios phonegap application. For registration i use <a href="https://github.com/phonegap/phonegap-facebook-plugin" rel="nofollow noreferrer">phonegap facebook plugin</a>. It worked fine for the first time. But now when i try to register it isn't working. I haven't changed anything. I use Xcode version 4.6.1 and cordova version 2.4.0. </p>
  
  <p><img src="https://i.stack.imgur.com/RghCS.png" alt="enter image description here"></p>
  
  <p>Figure shows my Facebook developers page.</p>
  
  <p>What am i doing wrong?</p>
  
  <p>Please help,
  Thanks.</p>