我从崩溃症中得到了以下错误，而且我很难尝试破译它。我试图调查connectButtonTapped方法，但根本没有看到任何错误。也许这甚至不会发生在哪里......任何想法？
#0. Crashed: com.apple.main-thread
0 libsystem_kernel.dylib 0x180643014 __pthread_kill + 8
1 libsystem_pthread.dylib 0x18070b450 pthread_kill + 112
2 libsystem_c.dylib 0x1805b7400 abort + 140
3 libswiftCore.dylib 0x100af3d1c swift_deletedMethodError (__hidden#19885_:285)
4 libswiftCore.dylib 0x100ad5e04 _hidden#19211_ (__hidden#19255_:184)
5 libswiftCore.dylib 0x100ad5e7c swift_dynamicCastClass (__hidden#19255_:270)
6 libswiftCore.dylib 0x100ad5f0c swift_dynamicCastClassUnconditional (__hidden#19255_:294)
7 TestApp. 0x10010a464 specialized vcMeet.connectButtonTapped(sender : vMeetButtonSection) -> () (vcMeet.swift)
8 TestApp 0x100107524 @objc vcMeet.connectButtonTapped(sender : vMeetButtonSection) -> () (vcMeet.swift)
9 TestApp 0x1001075f4 protocol witness for vMeetButtonSectionResponderDelegate.connectButtonTapped(sender : vMeetButtonSection) -> () in conformance vcMeet (vcMeet.swift)
10 HighThere 0x1001380c0 @objc vMeetButtonSection.connectTapped() -> () (vMeetButtonSection.swift)
11 UIKit 0x18755fd30 -[UIApplication sendAction:to:from:forEvent:] + 96
12 UIKit 0x18755fcb0 -[UIControl sendAction:to:forEvent:] + 80
13 UIKit 0x18754a128 -[UIControl _sendActionsForEvents:withEvent:] + 452
14 UIKit 0x18755f59c -[UIControl touchesEnded:withEvent:] + 584
15 UIKit 0x18755f0c4 -[UIWindow _sendTouchesForEvent:] + 2484
16 UIKit 0x18755a328 -[UIWindow sendEvent:] + 2988
17 UIKit 0x18752ada0 -[UIApplication sendEvent:] + 340
18 UIKit 0x187d1475c __dispatchPreprocessedEventFromEventQueue + 2736
19 UIKit 0x187d0e130 __handleEventQueue + 784
20 CoreFoundation 0x181622b5c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
21 CoreFoundation 0x1816224a4 __CFRunLoopDoSources0 + 524
22 CoreFoundation 0x1816200a4 __CFRunLoopRun + 804
23 CoreFoundation 0x18154e2b8 CFRunLoopRunSpecific + 444
24 GraphicsServices 0x183002198 GSEventRunModal + 180
25 UIKit 0x1875957fc -[UIApplication _run] + 684
26 UIKit 0x187590534 UIApplicationMain + 208
27 TestApp 0x10005a8b4 main (tbcSettings.swift:17)
28 libdispatch.dylib 0x1805315b8 (Missing)