由于以下错误，我的应用程序一直崩溃。我试过调试它但是我不能理解它为什么会引起它以及如何调试和删除它..
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x335cef46 objc_msgSend + 5
1 UIKit 0x29307c2b -[UIApplication sendAction:to:from:forEvent:] + 70
2 UIKit 0x29307bd1 -[UIControl sendAction:to:forEvent:] + 44
3 UIKit 0x292f2863 -[UIControl _sendActionsForEvents:withEvent:] + 582
4 UIKit 0x2930763d -[UIControl touchesEnded:withEvent:] + 588
5 UIKit 0x29307317 -[UIWindow _sendTouchesForEvent:] + 522
6 UIKit 0x29300be1 -[UIWindow sendEvent:] + 544
7 UIKit 0x292d73dd -[UIApplication sendEvent:] + 196
8 UIKit 0x2954ac29 _UIApplicationHandleEventFromQueueEvent + 13888
9 UIKit 0x292d5e39 _UIApplicationHandleEventQueue + 1296
10 CoreFoundation 0x25dde377 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
11 CoreFoundation 0x25ddd787 __CFRunLoopDoSources0 + 218
12 CoreFoundation 0x25ddbded __CFRunLoopRun + 772
13 CoreFoundation 0x25d2a211 CFRunLoopRunSpecific + 476
14 CoreFoundation 0x25d2a023 CFRunLoopRunInMode + 106
15 GraphicsServices 0x2d1230a9 GSEventRunModal + 136
16 UIKit 0x293361d1 UIApplicationMain + 1440
17 Application 0x000ffefb main (main.m:17)