如果有人能指出我正确的方向，我将不胜感激。苹果应用审查委员会拒绝了我的应用，称该应用在启动时崩溃。不幸的是，我无法重现崩溃。下面列出了符号化崩溃日志的相关部分。非常感谢您提供解决此问题的指导
Hardware Model: xxx
Process: Havana [11291]
Path: /private/var/containers/Bundle/Application/7168627A-AC55-4E81-9FE0-05228C71B31E/Havana.app/Havana
Identifier: au.com.nextx.havana
Version: 6 (1.0)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: au.com.nextx.havana [3636]
Date/Time: 2018-09-10 18:04:16.6495 -0700
Launch Time: 2018-09-10 18:04:15.6077 -0700
OS Version: iPhone OS 11.4.1 (15G77)
Baseband Version: 6.80.00
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x0000000101310d3c
Termination Signal: Trace/BPT trap: 5
Termination Reason: Namespace SIGNAL, Code 0x5
Terminating Process: exc handler [0]
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libswiftCore.dylib 0x0000000101310d3c 0x101160000 + 1772860
1 libswiftCore.dylib 0x0000000101310d3c 0x101160000 + 1772860
2 libswiftCore.dylib 0x00000001011a8094 0x101160000 + 295060
3 Havana 0x0000000100dea374 @objc AppDelegate.applicationWillResignActive(_:) + 172916 (AppDelegate.swift:0)
4 UIKit 0x000000018f06ddbc -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 408
5 UIKit 0x000000018f06d1c4 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3484
6 UIKit 0x000000018f03a5e0 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1680
7 UIKit 0x000000018f66ab1c __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 784
8 UIKit 0x000000018f039dd0 +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 160
9 UIKit 0x000000018f039c6c -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 240
10 UIKit 0x000000018f038afc -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 724
11 UIKit 0x000000018fcce84c __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 296
12 UIKit 0x000000018f0381ec -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 432
13 UIKit 0x000000018fab3ac8 __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 220
14 UIKit 0x000000018fc01bf8 _performActionsWithDelayForTransitionContext + 112
15 UIKit 0x000000018f037c0c -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 248
16 UIKit 0x000000018f0375a8 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 368
17 UIKit 0x000000018f0345e0 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 540
18 UIKit 0x000000018f034330 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 364
19 FrontBoardServices 0x0000000187c60470 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 364
20 FrontBoardServices 0x0000000187c68d6c __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 224
21 libdispatch.dylib 0x0000000184d50a60 _dispatch_client_callout + 16
22 libdispatch.dylib 0x0000000184d58170 _dispatch_block_invoke_direct$VARIANT$mp + 224
23 FrontBoardServices 0x0000000187c94878 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 36
24 FrontBoardServices 0x0000000187c9451c -[FBSSerialQueue _performNext] + 404
25 FrontBoardServices 0x0000000187c94ab8 -[FBSSerialQueue _performNextFromRunLoopSource] + 56
26 CoreFoundation 0x0000000185407404 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
27 CoreFoundation 0x0000000185406c2c __CFRunLoopDoSources0 + 276
28 CoreFoundation 0x000000018540479c __CFRunLoopRun + 1204
29 CoreFoundation 0x0000000185324da8 CFRunLoopRunSpecific + 552
30 GraphicsServices 0x000000018730a020 GSEventRunModal + 100
31 UIKit 0x000000018f344758 UIApplicationMain + 236
32 Havana 0x0000000100dc7e88 main + 32392 (ThresholdPanGesture.swift:13)
33 libdyld.dylib 0x0000000184db5fc0 start + 4
Thread 1:
0 libsystem_kernel.dylib 0x0000000184ee5d78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000185083eb4 _pthread_wqthread + 928
2 libsystem_pthread.dylib 0x0000000185083b08 start_wqthread + 4
Thread 2:
0 libsystem_pthread.dylib 0x0000000185083b04 start_wqthread + 0
Thread 3:
0 libsystem_pthread.dylib 0x0000000185083b04 start_wqthread + 0
Thread 4 name: com.apple.uikit.eventfetch-thread
Thread 4:
0 libsystem_kernel.dylib 0x0000000184ec3de8 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x0000000184ec3c60 mach_msg + 72
2 CoreFoundation 0x0000000185406e40 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x0000000185404908 __CFRunLoopRun + 1568
4 CoreFoundation 0x0000000185324da8 CFRunLoopRunSpecific + 552
5 Foundation 0x0000000185d99674 -[NSRunLoop+ 34420 (NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x0000000185d994dc -[NSRunLoop+ 34012 (NSRunLoop) runUntilDate:] + 84
7 UIKit 0x000000018f029768 -[UIEventFetcher threadMain] + 136
8 Foundation 0x0000000185ea9efc __NSThread__start__ + 1040
9 libsystem_pthread.dylib 0x0000000185085220 _pthread_body + 272
10 libsystem_pthread.dylib 0x0000000185085110 _pthread_body + 0
11 libsystem_pthread.dylib 0x0000000185083b10 thread_start + 4
Thread 5:
0 libsystem_pthread.dylib 0x0000000185083b04 start_wqthread + 0