我的应用程序在模拟器上工作正常，并在设备上工作，但曾几何时它开始崩溃。我只是因为没有消息而得到“lldb”错误。当我输入“bt”命令时，我看到了：

线程＃1：tid = 0x24a8,0x38a1fcc0 libobjc.A.dylib objc_exception_throw, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 frame #0: 0x38a1fcc0 libobjc.A.dylib objc_exception_throw   帧＃1：0x2e284bd0 CoreFoundation -[NSException raise] + 8 frame #2: 0x2ebca15e Foundation - [NSObject（NSKeyValueCoding）setValue：forKey：] + 202   帧＃3：0x2ebdbd8c基础-[NSObject(NSKeyValueCoding) setValue:forKeyPath:] + 300 frame #4: 0x2e1f4a54 CoreFoundation - [NSArray makeObjectsPerformSelector：] + 180   帧＃5：0x30e2553e UIKit -[UINib instantiateWithOwner:options:] + 1122 frame #6: 0x30d7de8e UIKit - [UIViewController _loadViewFromNibNamed：bundle：] + 234   帧＃7：0x30bda344 UIKit -[UIViewController loadView] + 92 frame #8: 0x30aba874 UIKit - [UIViewController loadViewIfRequired] + 72   帧＃9：0x30aba7f0 UIKit -[UIViewController view] + 24 frame #10: 0x30bda276 UIKit - [UIWindow handleStatusBarChangeFromHeight：toHeight：] + 694   帧＃11：0x30b41416 UIKit +[UIWindow _noteStatusBarHeightChanged:oldHeight:forAutolayoutRootViewsOnly:] + 238 frame #12: 0x30c41b10 UIKit__79 - [UIApplication _setStatusBarHidden:animationParameters:changeApplicationFlag:]_block_invoke + 132 frame #13: 0x30aeba1a UIKit + [UIView（UIViewAnimationWithBlocks）_setupAnimationWithDuration：delay：view：options：factory：animations：start：animationStateGenerator：completion：] + 490   帧＃14：0x30c2431e UIKit +[UIView(UIViewAnimationWithBlocks) animateWithDuration:animations:completion:] + 70 frame #15: 0x30b66dca UIKit - [UIApplication _setStatusBarHidden：animationParameters：changeApplicationFlag：] + 462   帧＃16：0x30ac18e0 UIKit -[UIApplication _updateCurrentStatusBarViewControllerAppearance] + 248 frame #17: 0x30abed72 UIKit - [UIWindow _setHidden：forced：] + 234   帧＃18：0x30b28a30 UIKit -[UIWindow makeKeyAndVisible] + 60 frame #19: 0x30b256c4 UIKit - [UIApplication _callInitializationDelegatesForURL：payload：suspended：] + 1820   帧＃20：0x30b1fca8 UIKit -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 720 frame #21: 0x30abbc76 UIKit - [UIApplication handleEvent：withNewEvent：] + 3550   帧＃22：0x30abadd8 UIKit -[UIApplication sendEvent:] + 72 frame #23: 0x30b1f3e4 UIKit _ UIApplicationHandleEvent + 616   帧＃24：0x33128b54 GraphicsServices _PurpleEventCallback + 608 frame #25: 0x3312873e GraphicsServices PurpleEventCallback + 34   帧＃26：0x2e24f806 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 34 frame #27: 0x2e24f7a2 CoreFoundation __ CFRunLoopDoSource1 + 346   帧＃28：0x2e24df6e CoreFoundation __CFRunLoopRun + 1406 frame #29: 0x2e1b8728 CoreFoundation CFRunLoopRunSpecific + 524   帧＃30：0x2e1b850a CoreFoundation CFRunLoopRunInMode + 106 frame #31: 0x30b1e60a UIKit - [UIApplication _run] + 762   帧＃32：0x30b19870 UIKit UIApplicationMain + 1136 <ul> <li>frame #33: 0x000e5ed8 SpriteKitSimpleGame main（argc = 1，argv = 0x27d62c34）+ 116 at main.m:16

我无法理解它崩溃的原因。可能是什么原因？

的 UPD

我已禁用异常断点并遇到新的奇怪错误：

由于未捕获的异常'NSUnknownKeyException'而终止应用程序，原因：'[setValue：forUndefinedKey：]：此类与密钥snewRecordLabel不符合密钥值编码。'

从Storyboard UILabel中删除了 snewRecordLabel ，但这可能是出错的原因。如何删除它？

如何解决Xcode中的lldb错误？

的 UPD

1 个答案: