title: SLComposeViewController get crash in ios8
body: <pre><code>SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
          controller.view.hidden = YES;
          [self presentViewController:controller animated:NO completion:^{
              [controller.view endEditing:YES];
          }];
  </code></pre>
  
  <p>This code working fine in iOS6 &amp; iOS7 but it get crash in iOS 8:</p>
  
  <pre><code>**2014-09-03 08:48:19.545 [1254:248164] Error: The operation couldn’t be completed. (com.apple.accounts error 6.)
  2014-09-03 08:48:19.558[1254:248164] Discovered extensions: {(
   &lt;NSExtension: 0x17013eaa0&gt; {id = com.apple.share.SinaWeibo.post},
   &lt;NSExtension: 0x17013ee60&gt; {id = com.apple.share.Facebook.post},
   &lt;NSExtension: 0x17013ebe0&gt; {id = com.apple.share.Twitter.post},
   &lt;NSExtension: 0x17013f400&gt; {id = com.apple.share.TencentWeibo.post},
   &lt;NSExtension: 0x17013e780&gt; {id = com.apple.share.Vimeo.post},
   &lt;NSExtension: 0x17013e6e0&gt; {id = com.apple.share.Flickr.post},
   &lt;NSExtension: 0x17013e640&gt; {id = com.apple.mobileslideshow.StreamShareService}
  )} for attributes: {
   NSExtensionPointName = "com.apple.share-services";
  }**
  </code></pre>
  
  <p>Get error message for :: <code>**LaunchServices: invalidationHandler called**</code></p>