我知道这是一个通用的问题,但我希望有类似经历的人可能知道可能发生的事情.
我在仅限 iPad的应用程序中仅在iOS 9上发生崩溃.它说NSInternalInconsistencyException.
它出现在纵向和横向模式以及许多iPad代(iPad 2,iPad Pro,iPad 4,......)上.
我没有在项目中的任何位置启用自动布局,但它看起来像是自动布局问题.
它很难复制,所以我无法在Xcode上调试它,但我看到有关崩溃分析服务"Crashlytics"的报告.这是来自Crashlytics的堆栈跟踪:
Auto layout internal error. Cannot find an outgoing row
head for incoming head <unknown var (bug!) with engine as delegate[...]
Thread : Fatal Exception: NSInternalInconsistencyException
0 CoreFoundation 0x23d4568b __exceptionPreprocess
1 libobjc.A.dylib 0x356c2e17 objc_exception_throw
2 CoreFoundation 0x23d455d1 -[NSException initWithCoder:]
3 Foundation 0x24a873b3 -[NSISEngine minimizeConstantInObjectiveRowWithHead:]
4 Foundation 0x24a86e4d -[NSISEngine optimize]
5 Foundation 0x24a82a53 -[NSISEngine withBehaviors:performModifications:]
6 UIKit 0x27e040bb -[UIView(Hierarchy) _postMovedFromSuperview:]
7 UIKit 0x280fb227 __UIViewWasRemovedFromSuperview
8 UIKit …