我收到了这个崩溃报告,但我不知道如何调试它.
Fatal Exception NSInvalidArgumentException
Can't add self as subview
0 ... CoreFoundation __exceptionPreprocess + 130
1 libobjc.A.dylib objc_exception_throw + 38
2 CoreFoundation -[NSException initWithCoder:]
3 UIKit -[UIView(Internal) _addSubview:positioned:relativeTo:] + 110
4 UIKit -[UIView(Hierarchy) addSubview:] + 30
5 UIKit __53-[_UINavigationParallaxTransition animateTransition:]_block_invoke + 1196
6 UIKit +[UIView(Animation) performWithoutAnimation:] + 72
7 UIKit -[_UINavigationParallaxTransition animateTransition:] + 732
8 UIKit -[UINavigationController _startCustomTransition:] + 2616
9 UIKit -[UINavigationController _startDeferredTransitionIfNeeded:] + 418
10 UIKit -[UINavigationController __viewWillLayoutSubviews] + 44
11 UIKit -[UILayoutContainerView layoutSubviews] + 184
12 UIKit …