xcode - 如何解决Xcode中的lldb错误？

Question

我的应用程序可以在模拟器上正常运行，并且可以在设备上运行，但是从前它开始崩溃。
我只是收到“lldb”错误而没有消息。当我键入“bt”命令时，我看到以下内容:

• thread #1: tid = 0x24a8, 0x38a1fcc0 libobjc.A.dylibobjc_exception_throw, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x38a1fcc0 libobjc.A.dylibobjc_exception_throw frame #1: 0x2e284bd0 CoreFoundation-[NSException raise] + 8
frame #2: 0x2ebca15e Foundation-[NSObject(NSKeyValueCoding) setValue:forKey:] + 202 frame #3: 0x2ebdbd8c Foundation-[NSObject(NSKeyValueCoding) setValue:forKeyPath:] + 300
frame #4: 0x2e1f4a54 CoreFoundation-[NSArray makeObjectsPerformSelector:] + 180 frame #5: 0x30e2553e UIKit-[UINib instantiateWithOwner:options:] + 1122
frame #6: 0x30d7de8e UIKit-[UIViewController _loadViewFromNibNamed:bundle:] + 234 frame #7: 0x30bda344 UIKit-[UIViewController loadView] + 92
frame #8: 0x30aba874 UIKit-[UIViewController loadViewIfRequired] + 72 frame #9: 0x30aba7f0 UIKit-[UIViewController view] + 24
frame #10: 0x30bda276 UIKit-[UIWindow handleStatusBarChangeFromHeight:toHeight:] + 694 frame #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 frame #14: 0x30c2431e UIKit+[UIView(UIViewAnimationWithBlocks) animateWithDuration:animations:completion:] + 70
frame #15: 0x30b66dca UIKit-[UIApplication _setStatusBarHidden:animationParameters:changeApplicationFlag:] + 462 frame #16: 0x30ac18e0 UIKit-[UIApplication _updateCurrentStatusBarViewControllerAppearance] + 248
frame #17: 0x30abed72 UIKit-[UIWindow _setHidden:forced:] + 234 frame #18: 0x30b28a30 UIKit-[UIWindow makeKeyAndVisible] + 60
frame #19: 0x30b256c4 UIKit-[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1820 frame #20: 0x30b1fca8 UIKit-[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 720
frame #21: 0x30abbc76 UIKit-[UIApplication handleEvent:withNewEvent:] + 3550 frame #22: 0x30abadd8 UIKit-[UIApplication sendEvent:] + 72
frame #23: 0x30b1f3e4 UIKit_UIApplicationHandleEvent + 616 frame #24: 0x33128b54 GraphicsServices_PurpleEventCallback + 608
frame #25: 0x3312873e GraphicsServicesPurpleEventCallback + 34 frame #26: 0x2e24f806 CoreFoundation__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 34
frame #27: 0x2e24f7a2 CoreFoundation__CFRunLoopDoSource1 + 346 frame #28: 0x2e24df6e CoreFoundation__CFRunLoopRun + 1406
frame #29: 0x2e1b8728 CoreFoundationCFRunLoopRunSpecific + 524 frame #30: 0x2e1b850a CoreFoundationCFRunLoopRunInMode + 106
frame #31: 0x30b1e60a UIKit-[UIApplication _run] + 762 frame #32: 0x30b19870 UIKitUIApplicationMain + 1136
<ul>
<li>frame #33: 0x000e5ed8 SpriteKitSimpleGamemain(argc=1, argv=0x27d62c34) + 116 at main.m:16

我不明白为什么会崩溃。可能是什么原因？

UPD

我禁用了异常断点并得到了新的奇怪错误:

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key snewRecordLabel.'

从 Storyboard UILabel中删除了 snewRecordLabel ，但这可能是错误的原因。如何删除？

Answer 1

snewRecordLabel的 Storyboard 中有一些连接，如果找到snewRecordLabel，则可以将 Storyboard 打开为简单的textedit并查看xml数据，否则 Storyboard 中必定会缺少链接。