When embedding the AVPlayerViewController in a container view in iOS9 beta 1 and start playing an audio track, I get this with latest beta. Anyone else able to reproduce?:
2015-06-15 22:11:56.266 SampleRadio[860:521233] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x15cd8eb20 UIView:0x15cf58fc0.centerY == AVPictureInPictureIndicatorView:0x15cf58a10.centerY + 10>",
"<NSLayoutConstraint:0x15cd8ed50 V:[UIView:0x15cf58fc0]-(>=10)-| (Names: '|':AVPictureInPictureIndicatorView:0x15cf58a10 )>",
"<NSLayoutConstraint:0x15cd8efa0 V:|-(0)-[UIImageView:0x15cf591e0] (Names: '|':UIView:0x15cf58fc0 )>",
"<NSLayoutConstraint:0x15cd8a4e0 V:[UIImageView:0x15cf591e0]-(20)-[UILabel:0x15cd860a0'This video is playing in ...']>",
"<NSLayoutConstraint:0x15cd8a530 V:[UILabel:0x15cd860a0'This video is playing in ...']-(0)-| (Names: '|':UIView:0x15cf58fc0 )>",
"<NSLayoutConstraint:0x15cdc5530 V:|-(0)-[AVPictureInPictureIndicatorView:0x15cf58a10] (Names: '|':UIView:0x15cd84010 )>",
"<NSLayoutConstraint:0x15cdc5580 V:[AVPictureInPictureIndicatorView:0x15cf58a10]-(0)-| (Names: '|':UIView:0x15cd84010 )>",
"<NSLayoutConstraint:0x15cdc4f80 V:|-(0)-[UIView:0x15cd84010] (Names: '|':AVPlayerView:0x15cd83a40 )>",
"<NSLayoutConstraint:0x15cdc4fd0 V:[UIView:0x15cd84010]-(0)-| (Names: '|':AVPlayerView:0x15cd83a40 )>",
"<NSLayoutConstraint:0x15e822240 'UIView-Encapsulated-Layout-Height' V:[AVPlayerView:0x15cd83a40(57)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x15cd8a4e0 V:[UIImageView:0x15cf591e0]-(20)-[UILabel:0x15cd860a0'This video is playing in ...']>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.