[UIView的_forgetDependentConstraint：]：消息发送到释放的实例 [英] [UIView _forgetDependentConstraint:]: message sent to deallocated instance

问题描述

我试着用NSZobie和所有其他人。不过我遇到的问题。能不能找到应用程序的地方坠毁。请帮忙。先谢谢了。

  ***  -  [UIView的_forgetDependentConstraint：]：消息发送到释放的实例0x208e0010
（LLDB）BT
*线＃1：TID = 0x2503，0x342b3468 CoreFoundation` ___ forwarding___ + 192，停止的原因= EXC_BREAKPOINT（code = EXC_ARM_B`enter code here`REAKPOINT，分code = 0xdefe）
    帧＃0：0x342b3468 CoreFoundation` ___ forwarding___ + 192
    帧＃1：0x3420af68 CoreFoundation`__forwarding_ prep_0 ___ + 24
    帧＃2：0x364f24ba UIKit`_updateViewDependenciesForConstraint + 202
    帧＃3：0x364f9a2c UIKit`__72- [UIView的（AdditionalLayoutSupport）_removeRelevantConstraintsFromEngine：] _ block_invoke_0 + 264
    帧＃4：0x34c65882 Foundation`- [NSISEngine withAutomaticOptimizationDisabled：] + 166
    帧＃5：0x364f98ee UIKit`- [UIView的（AdditionalLayoutSupport）_removeRelevantConstraintsFromEngine：] + 94
    帧＃6：0x3629f4a0 UIKit`__UIViewWillBeRemovedFromSuperview + 588
    帧＃7：0x360e7848 UIKit`- [UIView的（层次）removeFromSuperview] + 56
    帧＃8：0x36137f18 UIKit`- [UINavigationTransitionView _cleanupTransition] + 92
    帧＃9：0x360ceab2 UIKit`- [UIViewAnimationState sendDelegateAnimationDidStop：完成：] + 158
    帧＃10：0x361438ee UIKit`- [UIViewAnimationState animationDidStop：完成：] + 50
    帧＃11：0x35e78c00 QuartzCore`CA ::层:: run_animation_callbacks（无效*）+ 208
    帧＃12：0x3c3f04b6 libdispatch.dylib`_dispatch_client_callout + 22
    帧＃13：0x3c3f51bc libdispatch.dylib`_dispatch_main_queue_callback_4CF $ VARIANT $ MP + 224
    帧＃14：0x34284f3a CoreFoundation`__CFRunLoopRun + 1290
    帧＃15：0x341f7ebc CoreFoundation`CFRunLoopRunSpecific + 356
    帧＃16：0x341f7d48 CoreFoundation`CFRunLoopRunInMode + 104
    帧＃17：0x37dd02ea GraphicsServices`GSEventRunModal + 74
    帧＃18：0x3610d300 UIKit`UIApplicationMain + 1120
    帧＃19：0x000521deMyApp®`main（ARGC = 1，argv的= 0x2fdb3cf8）+ 162 main.m文件：6
    帧＃20：0x3c410b20 libdyld.dylib`start + 4
 

解决方案

检查您是否有UIAlertView中或视图动画来之前回到你的看法。看来你initalize它视图的局部变量，wihout有前preSS采用自委托，或者你使用removeFromSuperview一个视图，而行动消除后，仍然调用它。

I tried using NSZobie and all others. Still i face issues. can't able to find where app crashed. Please Help. thanks in advance.

 *** -[UIView _forgetDependentConstraint:]: message sent to deallocated instance 0x208e0010
(lldb) bt
* thread #1: tid = 0x2503, 0x342b3468 CoreFoundation`___forwarding___ + 192, stop reason = EXC_BREAKPOINT (code=EXC_ARM_B`enter code here`REAKPOINT, subcode=0xdefe)
    frame #0: 0x342b3468 CoreFoundation`___forwarding___ + 192
    frame #1: 0x3420af68 CoreFoundation`__forwarding_prep_0___ + 24
    frame #2: 0x364f24ba UIKit`_updateViewDependenciesForConstraint + 202
    frame #3: 0x364f9a2c UIKit`__72-[UIView(AdditionalLayoutSupport) _removeRelevantConstraintsFromEngine:]_block_invoke_0 + 264
    frame #4: 0x34c65882 Foundation`-[NSISEngine withAutomaticOptimizationDisabled:] + 166
    frame #5: 0x364f98ee UIKit`-[UIView(AdditionalLayoutSupport) _removeRelevantConstraintsFromEngine:] + 94
    frame #6: 0x3629f4a0 UIKit`__UIViewWillBeRemovedFromSuperview + 588
    frame #7: 0x360e7848 UIKit`-[UIView(Hierarchy) removeFromSuperview] + 56
    frame #8: 0x36137f18 UIKit`-[UINavigationTransitionView _cleanupTransition] + 92
    frame #9: 0x360ceab2 UIKit`-[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 158
    frame #10: 0x361438ee UIKit`-[UIViewAnimationState animationDidStop:finished:] + 50
    frame #11: 0x35e78c00 QuartzCore`CA::Layer::run_animation_callbacks(void*) + 208
    frame #12: 0x3c3f04b6 libdispatch.dylib`_dispatch_client_callout + 22
    frame #13: 0x3c3f51bc libdispatch.dylib`_dispatch_main_queue_callback_4CF$VARIANT$mp + 224
    frame #14: 0x34284f3a CoreFoundation`__CFRunLoopRun + 1290
    frame #15: 0x341f7ebc CoreFoundation`CFRunLoopRunSpecific + 356
    frame #16: 0x341f7d48 CoreFoundation`CFRunLoopRunInMode + 104
    frame #17: 0x37dd02ea GraphicsServices`GSEventRunModal + 74
    frame #18: 0x3610d300 UIKit`UIApplicationMain + 1120
    frame #19: 0x000521de MyApp®`main(argc=1, argv=0x2fdb3cf8) + 162 at main.m:6
    frame #20: 0x3c410b20 libdyld.dylib`start + 4

解决方案

Check if you have UIAlertView or animations in view before came back to your view. It seems you are initalize a view with it's local variable, wihout having express use self delegate, or you use removeFromSuperview for a view while actions still call it after remove.

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