Autoconstraint issue

gistfile1.txt

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:0x17009cb60 UIImageView:0x1701f9900.centerX == AVAudioOnlyIndicatorView:0x170199980.centerX>",
    "<NSLayoutConstraint:0x17009cbb0 H:|-(>=10)-[UIImageView:0x1701f9900]   (Names: '|':AVAudioOnlyIndicatorView:0x170199980 )>",
    "<NSLayoutConstraint:0x17009d970 H:|-(0)-[AVAudioOnlyIndicatorView:0x170199980]   (Names: '|':UIView:0x17419a4e0 )>",
    "<NSLayoutConstraint:0x17009d9c0 H:[AVAudioOnlyIndicatorView:0x170199980]-(0)-|   (Names: '|':UIView:0x17419a4e0 )>",
    "<NSLayoutConstraint:0x17009d6f0 H:|-(0)-[UIView:0x17419a4e0]   (Names: '|':AVPlayerView:0x17419a410 )>",
    "<NSLayoutConstraint:0x17009d740 H:[UIView:0x17419a4e0]-(0)-|   (Names: '|':AVPlayerView:0x17419a410 )>",
    "<NSLayoutConstraint:0x17409f680 'UIView-Encapsulated-Layout-Width' H:[AVPlayerView:0x17419a410(1)]>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x17009cb60 UIImageView:0x1701f9900.centerX == AVAudioOnlyIndicatorView:0x170199980.centerX>

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.

something.m

UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
[webView.scrollView setScrollEnabled:NO];
[webView.scrollView setBounces:NO];

[self.view addSubview:webView];

[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.youtube.com/watch?v=txj6ROnIUIo"]]];