我的（第一个）macOS应用程序存在问题。 beta测试程序在应用程序启动时就会崩溃。 我有点疑惑为什么。 我已经包含了crashlytics框架（版本3.9.3（128））。在我看来崩溃时碰撞试图发送报告（从之前的崩溃？）。
有没有人经历过类似的事情？
2017-11-09 10:22:51.369 AquaCalculator[3959:1399290] [Crashlytics] Version 3.9.3 (128)
2017-11-09 10:22:51.464 AquaCalculator[3959:1399398] [Crashlytics:Crash:Reports] Packaged report with id '71a39da2c3fc41b9a563b6c2d0a20f8e' for submission
2017-11-09 10:22:52.966 AquaCalculator[3959:1399290] -[NSNull length]: unrecognized selector sent to instance 0x7fff94044b40
Illegal instruction: 4
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
Deleting expired sessions...none found.
崩溃报告中的更多细节：
[Process completed]
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [0]
Application Specific Information:
Crashing on exception: -[NSNull length]: unrecognized selector sent to instance 0x7fff94044b40
Application Specific Backtrace 1:
0 CoreFoundation 0x00007fff39dad14b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fff60df2c76 objc_exception_throw + 48
2 CoreFoundation 0x00007fff39e45d64 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00007fff39d23530 ___forwarding___ + 1456
4 CoreFoundation 0x00007fff39d22ef8 _CF_forwarding_prep_0 + 120
5 Foundation 0x00007fff3bf3739a getObjectValue + 444
6 Foundation 0x00007fff3bf37164 -[NSDateFormatter getObjectValue:forString:errorDescription:] + 471
7 Foundation 0x00007fff3bf36f79 -[NSDateFormatter dateFromString:] + 50
8 AquaCalculator 0x0000000100d56215 AquaCalculator + 115221
9 CFNetwork 0x00007fff38caf4ab __75-[__NSURLSessionLocal taskForClass:request:uploadFile:bodyData:completion:]_block_invoke + 19
10 CFNetwork 0x00007fff38caed05 __49-[__NSCFLocalSessionTask _task_onqueue_didFinish]_block_invoke + 147
11 Foundation 0x00007fff3beb925b __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
12 Foundation 0x00007fff3beb90bd -[NSBlockOperation main] + 68
13 Foundation 0x00007fff3beb756a -[__NSOperationInternal _start:] + 778
14 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
15 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
16 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
17 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
18 libdispatch.dylib 0x00007fff619bb1d6 dispatch_block_perform + 109
19 Foundation 0x00007fff3beb3578 __NSOQSchedule_f + 342
20 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
21 libdispatch.dylib 0x00007fff619b432d _dispatch_main_queue_callback_4CF + 1148
22 CoreFoundation 0x00007fff39d658e9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
23 CoreFoundation 0x00007fff39d27b0a __CFRunLoopRun + 2586
24 CoreFoundation 0x00007fff39d26e63 CFRunLoopRunSpecific + 483
25 HIToolbox 0x00007fff3903fe26 RunCurrentEventLoopInMode + 286
26 HIToolbox 0x00007fff3903fb96 ReceiveNextEventCommon + 613
27 HIToolbox 0x00007fff3903f914 _BlockUntilNextEventMatchingListInModeWithFilter + 64
28 AppKit 0x00007fff37334483 _DPSNextEvent + 2085
29 AppKit 0x00007fff37ac9ff8 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
30 AppKit 0x00007fff37329291 -[NSApplication run] + 764
31 AppKit 0x00007fff372f8436 NSApplicationMain + 804
32 libdyld.dylib 0x00007fff619e2115 start + 1
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.AppKit 0x00007fff3765ec54 -[NSApplication _crashOnException:] + 109
1 com.apple.AppKit 0x00007fff3765eb3c -[NSApplication reportException:] + 953
2 com.apple.AppKit 0x00007fff377492ac uncaughtErrorProc + 157
3 com.apple.CoreFoundation 0x00007fff39e3f113 __handleUncaughtException + 771
4 libobjc.A.dylib 0x00007fff60df4e9d _objc_terminate() + 91
5 com.thallos.de.AquaCalculator 0x0000000100e31d39 0x100d3a000 + 1015097
6 libc++abi.dylib 0x00007fff5fa857c9 std::__terminate(void (*)()) + 8
7 libc++abi.dylib 0x00007fff5fa85843 std::terminate() + 51
8 libdispatch.dylib 0x00007fff619a8d64 _dispatch_client_callout + 28
9 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
10 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
11 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
12 libdispatch.dylib 0x00007fff619bb1d6 dispatch_block_perform + 109
13 com.apple.Foundation 0x00007fff3beb3578 __NSOQSchedule_f + 342
14 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
15 libdispatch.dylib 0x00007fff619b432d _dispatch_main_queue_callback_4CF + 1148
16 com.apple.CoreFoundation 0x00007fff39d658e9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
17 com.apple.CoreFoundation 0x00007fff39d27b0a __CFRunLoopRun + 2586
18 com.apple.CoreFoundation 0x00007fff39d26e63 CFRunLoopRunSpecific + 483
19 com.apple.HIToolbox 0x00007fff3903fe26 RunCurrentEventLoopInMode + 286
20 com.apple.HIToolbox 0x00007fff3903fb96 ReceiveNextEventCommon + 613
21 com.apple.HIToolbox 0x00007fff3903f914 _BlockUntilNextEventMatchingListInModeWithFilter + 64
22 com.apple.AppKit 0x00007fff37334483 _DPSNextEvent + 2085
23 com.apple.AppKit 0x00007fff37ac9ff8 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
24 com.apple.AppKit 0x00007fff37329291 -[NSApplication run] + 764
25 com.apple.AppKit 0x00007fff372f8436 NSApplicationMain + 804
26 libdyld.dylib 0x00007fff619e2115 start + 1
Thread 1:
0 libsystem_kernel.dylib 0x00007fff61b32572 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff61c6d06a _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 2:: Dispatch queue: io.answers.EventQueue (QOS: BACKGROUND)
0 com.apple.Foundation 0x00007fff3bef4016 -[NSFilesystemItemRemoveOperation delegate] + 0
1 com.apple.Foundation 0x00007fff3bef3f7b __NSRemoveFileConfirmCallback + 40
2 libremovefile.dylib 0x00007fff61a17861 __removefile_tree_walker + 181
3 libremovefile.dylib 0x00007fff61a17bd7 removefile + 151
4 com.apple.Foundation 0x00007fff3bef3e94 -[NSFilesystemItemRemoveOperation main] + 171
5 com.apple.Foundation 0x00007fff3beb756a -[__NSOperationInternal _start:] + 778
6 com.apple.Foundation 0x00007fff3bef3d23 -[NSFileManager removeItemAtPath:error:] + 84
7 com.thallos.de.AquaCalculator 0x0000000100e4e49b 0x100d3a000 + 1131675
8 com.thallos.de.AquaCalculator 0x0000000100e48f87 0x100d3a000 + 1109895
9 com.thallos.de.AquaCalculator 0x0000000100e48f09 0x100d3a000 + 1109769
10 com.thallos.de.AquaCalculator 0x0000000100e4e789 0x100d3a000 + 1132425
11 com.thallos.de.AquaCalculator 0x0000000100e433dc 0x100d3a000 + 1086428
12 com.thallos.de.AquaCalculator 0x0000000100e12aa6 0x100d3a000 + 887462
13 com.thallos.de.AquaCalculator 0x0000000100e1284f 0x100d3a000 + 886863
14 com.thallos.de.AquaCalculator 0x0000000100e12996 0x100d3a000 + 887190
15 com.thallos.de.AquaCalculator 0x0000000100e43261 0x100d3a000 + 1086049
16 com.thallos.de.AquaCalculator 0x0000000100e43127 0x100d3a000 + 1085735
17 com.thallos.de.AquaCalculator 0x0000000100e4e669 0x100d3a000 + 1132137
18 com.thallos.de.AquaCalculator 0x0000000100e4924f 0x100d3a000 + 1110607
19 com.apple.CFNetwork 0x00007fff38e68a9f __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.182 + 80
20 com.apple.Foundation 0x00007fff3beb925b __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
21 com.apple.Foundation 0x00007fff3beb90bd -[NSBlockOperation main] + 68
22 com.apple.Foundation 0x00007fff3beb756a -[__NSOperationInternal _start:] + 778
23 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
24 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
25 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
26 libdispatch.dylib 0x00007fff619bb333 _dispatch_block_invoke_direct + 317
27 libdispatch.dylib 0x00007fff619bb1d6 dispatch_block_perform + 109
28 com.apple.Foundation 0x00007fff3beb3578 __NSOQSchedule_f + 342
29 libdispatch.dylib 0x00007fff619a8d50 _dispatch_client_callout + 8
30 libdispatch.dylib 0x00007fff619bbe76 _dispatch_continuation_pop + 472
31 libdispatch.dylib 0x00007fff619b36cb _dispatch_async_redirect_invoke + 703
32 libdispatch.dylib 0x00007fff619aa941 _dispatch_root_queue_drain + 515
33 libdispatch.dylib 0x00007fff619aa6ed _dispatch_worker_thread3 + 101
34 libsystem_pthread.dylib 0x00007fff61c6d1ca _pthread_wqthread + 1387
35 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 3:
0 libsystem_kernel.dylib 0x00007fff61b32572 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff61c6d26f _pthread_wqthread + 1552
2 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 4:
0 libsystem_kernel.dylib 0x00007fff61b32572 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff61c6d06a _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 5:
0 libsystem_kernel.dylib 0x00007fff61b32572 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff61c6d06a _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 6:
0 libsystem_pthread.dylib 0x00007fff61c6cc40 start_wqthread + 0
1 ??? 0x00007ffd8ba0f350 0 + 140726946034512
Thread 7:
0 libsystem_kernel.dylib 0x00007fff61b32572 __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff61c6d06a _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff61c6cc4d start_wqthread + 13
Thread 8:: com.twitter.crashlytics.mac.MachExceptionServer
0 libsystem_kernel.dylib 0x00007fff61b339e2 write + 10
1 com.thallos.de.AquaCalculator 0x0000000100e27b1e 0x100d3a000 + 973598
2 com.thallos.de.AquaCalculator 0x0000000100e1f15c 0x100d3a000 + 938332
3 libsystem_pthread.dylib 0x00007fff61c6d6c1 _pthread_body + 340
4 libsystem_pthread.dylib 0x00007fff61c6d56d _pthread_start + 377
5 libsystem_pthread.dylib 0x00007fff61c6cc5d thread_start + 13
Thread 9:
0 libsystem_pthread.dylib 0x00007fff61c6cc40 start_wqthread + 0
1 ??? 0x000070000303bbe0 0 + 123145352887264
Thread 10:: com.apple.NSEventThread
0 libsystem_kernel.dylib 0x00007fff61b288f2 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff61b27e0c mach_msg + 60
2 com.apple.CoreFoundation 0x00007fff39d28495 __CFRunLoopServiceMachPort + 341
3 com.apple.CoreFoundation 0x00007fff39d277e7 __CFRunLoopRun + 1783
4 com.apple.CoreFoundation 0x00007fff39d26e63 CFRunLoopRunSpecific + 483
5 com.apple.AppKit 0x00007fff37471918 _NSEventThread + 184
6 libsystem_pthread.dylib 0x00007fff61c6d6c1 _pthread_body + 340
7 libsystem_pthread.dylib 0x00007fff61c6d56d _pthread_start + 377
8 libsystem_pthread.dylib 0x00007fff61c6cc5d thread_start + 13
Thread 11:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff61b288f2 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff61b27e0c mach_msg + 60
2 com.apple.CoreFoundation 0x00007fff39d28495 __CFRunLoopServiceMachPort + 341
3 com.apple.CoreFoundation 0x00007fff39d277e7 __CFRunLoopRun + 1783
4 com.apple.CoreFoundation 0x00007fff39d26e63 CFRunLoopRunSpecific + 483
5 com.apple.CFNetwork 0x00007fff38ec744c -[__CoreSchedulingSetRunnable runForever] + 722
6 com.apple.Foundation 0x00007fff3beabe78 __NSThread__start__ + 1197
7 libsystem_pthread.dylib 0x00007fff61c6d6c1 _pthread_body + 340
8 libsystem_pthread.dylib 0x00007fff61c6d56d _pthread_start + 377
9 libsystem_pthread.dylib 0x00007fff61c6cc5d thread_start + 13
答案 0 :(得分：1)
Mike来自Fabric。我不相信这是Crashlytics内部的崩溃。您将在大多数崩溃报告中看到我们的线程被引用，因为我们的进程正在醒来以捕获异常。
您所看到的错误通常是由于内存管理不善或持有不再存在的对象造成的。