title: FBRequest requestForMe startWithCompletionHandler method not working on device
body: <p>I have followed all the directions from the Facebook Developer website about integrating Facebook SDK 3.1 into iOS 6. My code runs perfectly on the iPhone 6.0 Simulator (user can log into Facebook), but when I run the app on my iPhone, the function [FBRequest requestForMe] startWithCompletionHandler] doesn't generate a response. According to the Facebook Developer website, it should either be successful or return an error, but it does neither. The app just sits there waiting for a response that never comes. My code is below:</p>
  
  <pre><code>- (void)populateUserDetails {
      if (FBSession.activeSession.isOpen) {
          [[FBRequest requestForMe] startWithCompletionHandler:
           ^(FBRequestConnection *connection, NSDictionary&lt;FBGraphUser&gt; *user, NSError *error) {
               if (!error) {
                  NSLog(@"logged in");
               } else {
                   NSLog(@"error: %@", error);
               }
           }];
      } else {
         NSLog(@"no active session");
      }
  }
  </code></pre>
  
  <p>Using breakpoints, I determined that the activeSession is always open, so the startWithCompletionHandler: method is actually called. Maybe it's a build problem since it runs fine on the Simulator? Any ideas?</p>