title: MPMoviePlayerController layout constraint issues
body: <p>I am porting an application to iOS 8. I had some code to play a video that was working before but now it doesn't.</p>
  
  <p>When I run it, I get the following errors:</p>
  
  <pre><code>(
  "&lt;NSLayoutConstraint:0x7faba2df5940 H:|-(34)-[MPKnockoutButton:0x7faba2e6d750](LTR)   (Names: '|':_UIBackdropContentView:0x7faba2dc38c0 )&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2d51780 H:[MPKnockoutButton:0x7faba2e6d750]-(34)-[MPDetailSlider:0x7faba2dc6440](LTR)&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2d5b7f0 H:[MPDetailSlider:0x7faba2dc6440]-(34)-[UIView:0x7faba2dc4060](LTR)&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2dc5da0 UIView:0x7faba2dc4060.right == _UIBackdropView:0x7faba2dbfdc0.right&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2dc58d0 H:|-(0)-[_UIBackdropView:0x7faba2dbfdc0]   (Names: '|':MPVideoPlaybackOverlayView:0x7faba2dbf6a0 )&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2dc5950 H:[_UIBackdropView:0x7faba2dbfdc0]-(0)-|   (Names: '|':MPVideoPlaybackOverlayView:0x7faba2dbf6a0 )&gt;",
  
  "&lt;NSLayoutConstraint:0x7faba2df9b10 H:[MPVideoPlaybackOverlayView:0x7faba2dbf6a0(0)]&gt;",
  
  "&lt;NSAutoresizingMaskLayoutConstraint:0x7faba2dfbfa0 h=-&amp;- v=-&amp;- _UIBackdropContentView:0x7faba2dc38c0.midX == _UIBackdropView:0x7faba2dbfdc0.midX&gt;",
  
  "&lt;NSAutoresizingMaskLayoutConstraint:0x7faba2dfbff0 h=-&amp;- v=-&amp;- _UIBackdropContentView:0x7faba2dc38c0.width == _UIBackdropView:0x7faba2dbfdc0.width&gt;"
  )
  </code></pre>
  
  <p>Here's the code:</p>
  
  <pre><code>movieController = [[MPMoviePlayerController alloc]
                   initWithContentURL:[NSURL URLWithString:playlistUrl]];
  
  movieController.movieSourceType = MPMovieSourceTypeStreaming;
  [movieController.view setFrame:[self.playerView bounds]];
  
  [self.playerView addSubview:movieController.view];
  [movieController play];
  </code></pre>
  
  <p>Any thoughts?</p>