我有一个应用程序可以在没有自动布局的情况下运行。在我介绍了 Autolayout 并确保所有“约束不令人满意”类型的消息从控制台日志中消失后，我可以在 3.5 和 4.0 视网膜显示器上加载我的视图。当我尝试添加模态视图时，应用程序崩溃并显示以下内容。没有办法调试...请帮助。
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x01be209b objc_msgSend + 15
1 Foundation 0x009c4795 -[NSISVariable shouldBeIntegral] + 57
2 Foundation 0x009b8a58 -[NSISEngine substituteOutAllOccurencesOfBodyVar:withExpression:] + 546
3 Foundation 0x009b90d4 -[NSISEngine pivotToMakeBodyVar:newHeadOfRowWithHead:] + 382
4 Foundation 0x009be0e0 -[NSISEngine removeConstraintWithMarker:] + 315
5 Foundation 0x009c87ee -[NSLayoutConstraint _removeFromEngine:] + 277
6 UIKit 0x01322721 __72-[UIView(AdditionalLayoutSupport) _removeRelevantConstraintsFromEngine:]_block_invoke_0 + 363
7 Foundation 0x009bd0b3 -[NSISEngine withAutomaticOptimizationDisabled:] + 57
8 UIKit 0x01322579 -[UIView(AdditionalLayoutSupport) _removeRelevantConstraintsFromEngine:] + 109
9 UIKit 0x00e254d4 __UIViewWillBeRemovedFromSuperview + 766
10 UIKit 0x00e25133 -[UIView(Hierarchy) removeFromSuperview] + 70
11 UIKit 0x00e9e935 -[UITransitionView _didCompleteTransition:] + 634
12 UIKit 0x00ea0f13 -[UITransitionView _transitionDidStop:finished:] + 107
13 UIKit 0x00e1cd66 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 237
14 UIKit 0x00e1cf04 -[UIViewAnimationState animationDidStop:finished:] + 68
15 QuartzCore 0x007297d8 CA::Layer::run_animation_callbacks(void*) + 284
16 libdispatch.dylib 0x029c0014 _dispatch_client_callout + 14
17 libdispatch.dylib 0x029b07d5 _dispatch_main_queue_callback_4CF + 296
18 CoreFoundation 0x01d51af5 __CFRunLoopRun + 1925
19 CoreFoundation 0x01d50f44 CFRunLoopRunSpecific + 276
20 CoreFoundation 0x01d50e1b CFRunLoopRunInMode + 123
21 GraphicsServices 0x02bf77e3 GSEventRunModal + 88
22 GraphicsServices 0x02bf7668 GSEventRun + 104
23 UIKit 0x00ddeffc UIApplicationMain + 1211
24 LMClient-1.0 0x0000291d main + 141 (main.m:16)
25 LMClient-1.0 0x00002845 start + 53