I received the following report from Crashlytics. I was not calling[UIFeedbackGenerator _autoDeactivate] myself. Maybe some library was doing that. I have done some research but could not find any useful information. Does anyone know what this crash report means? Thank you!
Fatal Exception: NSInternalInconsistencyException
Exception raised while auto-deactivating <UISelectionFeedbackGenerator: 0x1c012d7a0: prepared=0> for style 2: force deactivating <UISelectionFeedbackGenerator: 0x1c012d7a0: prepared=0> with style TurnOn which is not active (activationCount = -1) configuration: <_UISelectionFeedbackGeneratorConfiguration: 0x1c0301710: isEnabled=1, activationStyle=2, requiredSupportLevel=0> activationCount: -1, styleActivationCount: -1 engines: {( <_UIFeedbackHapticEngine: 0x1c40dd180: state=4, numberOfClients=5, prewarmCount=0, _isSuspended=0> )}
Here is the full report:
# Crashlytics - plaintext stacktrace downloaded by Sen Liu at Tue, 10
Oct 2017 22:21:10 GMT
# URL: https://fabric.io/my-app/ios/apps/MyApp.MyApp/issues/59dd3fa2be077a4dcc13b10e?time=last-seven-days/sessions/a519bdec262e49e0be602410c090e407_6e21562fae0411e7918c56847afe9799_0_v2
# Organization: My Company
# Platform: ios
# Application: MyApp
# Version: 0.9 (28)
# Bundle Identifier: MyApp.MyApp
# Issue #: 7
# Issue ID: 59dd3fa2be077a4dcc13b10e
# Session ID: a519bdec262e49e0be602410c090e407_6e21562fae0411e7918c56847afe9799_0_v2
# Date: 2017-10-10T21:46:00Z
# OS Version: 11.0.1 (15A402)
# Device: iPhone 7 Plus
# RAM Free: 5.8%
# Disk Free: 2.5%
#0. Crashed: com.twitter.crashlytics.ios.exception
0 MyApp 0x100ab1ec4 CLSProcessRecordAllThreads + 1572
1 MyApp 0x100ab1ec4 CLSProcessRecordAllThreads + 1572
2 MyApp 0x100ab1d80 CLSProcessRecordAllThreads + 1248
3 MyApp 0x100aa1670 CLSHandler + 48
4 MyApp 0x100aafcc0 __CLSExceptionRecord_block_invoke + 92
5 libdispatch.dylib 0x182ab5048 _dispatch_client_callout + 16
6 libdispatch.dylib 0x182abdae8 _dispatch_queue_barrier_sync_invoke_and_complete + 56
7 MyApp 0x100aaf764 CLSExceptionRecord + 212
8 MyApp 0x100aaf598 CLSExceptionRecordNSException + 548
9 MyApp 0x100aaf1b8 CLSTerminateHandler() + 396
10 libc++abi.dylib 0x18263454c std::__terminate(void (*)()) + 16
11 libc++abi.dylib 0x1826345b8 std::terminate() + 60
12 libobjc.A.dylib 0x18264476c _destroyAltHandlerList + 10
13 libdispatch.dylib 0x182ab505c _dispatch_client_callout + 36
14 libdispatch.dylib 0x182abd3d4 _dispatch_continuation_pop$VARIANT$mp + 428
15 libdispatch.dylib 0x182ac6ca4 _dispatch_source_invoke$VARIANT$mp + 1588
16 libdispatch.dylib 0x182ac1a4c _dispatch_main_queue_callback_4CF$VARIANT$mp + 720
17 CoreFoundation 0x1830d7f20 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
18 CoreFoundation 0x1830d5afc __CFRunLoopRun + 2012
19 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
20 GraphicsServices 0x184e87f84 GSEventRunModal + 100
21 UIKit 0x18c5a3880 UIApplicationMain + 208
22 MyApp 0x10099a4cc main (AppDelegate.swift:16)
23 libdyld.dylib 0x182b1a56c start + 4
--
Fatal Exception: NSInternalInconsistencyException
0 CoreFoundation 0x18312fd38 __exceptionPreprocess
1 libobjc.A.dylib 0x182644528 objc_exception_throw
2 CoreFoundation 0x18312fc80 -[NSException initWithCoder:]
3 UIKit 0x18cf6b6d8 -[UIFeedbackGenerator _autoDeactivate]
4 UIKit 0x18cf6b408 __48-[UIFeedbackGenerator _setupAutoDeactivateTimer]_block_invoke
5 libdispatch.dylib 0x182ab5048 _dispatch_client_callout
6 libdispatch.dylib 0x182abd3d4 _dispatch_continuation_pop$VARIANT$mp
7 libdispatch.dylib 0x182ac6ca4 _dispatch_source_invoke$VARIANT$mp
8 libdispatch.dylib 0x182ac1a4c _dispatch_main_queue_callback_4CF$VARIANT$mp
9 CoreFoundation 0x1830d7f20 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
10 CoreFoundation 0x1830d5afc __CFRunLoopRun
11 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific
12 GraphicsServices 0x184e87f84 GSEventRunModal
13 UIKit 0x18c5a3880 UIApplicationMain
14 MyApp 0x10099a4cc main (AppDelegate.swift:16)
15 libdyld.dylib 0x182b1a56c start
#0. Crashed: com.twitter.crashlytics.ios.exception
0 MyApp 0x100ab1ec4 CLSProcessRecordAllThreads + 1572
1 MyApp 0x100ab1ec4 CLSProcessRecordAllThreads + 1572
2 MyApp 0x100ab1d80 CLSProcessRecordAllThreads + 1248
3 MyApp 0x100aa1670 CLSHandler + 48
4 MyApp 0x100aafcc0 __CLSExceptionRecord_block_invoke + 92
5 libdispatch.dylib 0x182ab5048 _dispatch_client_callout + 16
6 libdispatch.dylib 0x182abdae8 _dispatch_queue_barrier_sync_invoke_and_complete + 56
7 MyApp 0x100aaf764 CLSExceptionRecord + 212
8 MyApp 0x100aaf598 CLSExceptionRecordNSException + 548
9 MyApp 0x100aaf1b8 CLSTerminateHandler() + 396
10 libc++abi.dylib 0x18263454c std::__terminate(void (*)()) + 16
11 libc++abi.dylib 0x1826345b8 std::terminate() + 60
12 libobjc.A.dylib 0x18264476c _destroyAltHandlerList + 10
13 libdispatch.dylib 0x182ab505c _dispatch_client_callout + 36
14 libdispatch.dylib 0x182abd3d4 _dispatch_continuation_pop$VARIANT$mp + 428
15 libdispatch.dylib 0x182ac6ca4 _dispatch_source_invoke$VARIANT$mp + 1588
16 libdispatch.dylib 0x182ac1a4c _dispatch_main_queue_callback_4CF$VARIANT$mp + 720
17 CoreFoundation 0x1830d7f20 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
18 CoreFoundation 0x1830d5afc __CFRunLoopRun + 2012
19 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
20 GraphicsServices 0x184e87f84 GSEventRunModal + 100
21 UIKit 0x18c5a3880 UIApplicationMain + 208
22 MyApp 0x10099a4cc main (AppDelegate.swift:16)
23 libdyld.dylib 0x182b1a56c start + 4
#1. Thread
0 libsystem_pthread.dylib 0x182d5ac2c start_wqthread + 122
#2. com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x182c28bc4 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x182c28a3c mach_msg + 72
2 CoreFoundation 0x1830d7ce4 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x1830d58b0 __CFRunLoopRun + 1424
4 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
5 Foundation 0x183a1e6e4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x183a3dafc -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7 UIKit 0x18d0ef02c -[UIEventFetcher threadMain] + 136
8 Foundation 0x183b1f860 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
10 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
11 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#3. com.twitter.crashlytics.ios.MachExceptionServer
0 libsystem_kernel.dylib 0x182c28bc4 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x182c28a3c mach_msg + 72
2 MyApp 0x100a9c17c CLSMachExceptionServer + 100
3 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
4 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
5 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#4. Thread
0 libsystem_kernel.dylib 0x182c49dbc __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x182d5afb0 _pthread_wqthread + 884
2 libsystem_pthread.dylib 0x182d5ac30 start_wqthread + 4
#5. Thread
0 libsystem_kernel.dylib 0x182c49dbc __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x182d5afb0 _pthread_wqthread + 884
2 libsystem_pthread.dylib 0x182d5ac30 start_wqthread + 4
#6. com.apple.CFStream.LegacyThread
0 libsystem_kernel.dylib 0x182c28bc4 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x182c28a3c mach_msg + 72
2 CoreFoundation 0x1830d7ce4 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x1830d58b0 __CFRunLoopRun + 1424
4 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
5 CoreFoundation 0x1830e6f28 _legacyStreamRunLoop_workThread + 272
6 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
7 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
8 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#7. com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x182c28bc4 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x182c28a3c mach_msg + 72
2 CoreFoundation 0x1830d7ce4 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x1830d58b0 __CFRunLoopRun + 1424
4 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
5 CFNetwork 0x18375fb40 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404
6 Foundation 0x183b1f860 __NSThread__start__ + 996
7 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
8 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
9 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#8. com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x182c49570 __select + 8
1 CoreFoundation 0x1830e021c __CFSocketManager + 644
2 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
3 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
4 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#9. AVAudioSession Notify Thread
0 libsystem_kernel.dylib 0x182c28bc4 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x182c28a3c mach_msg + 72
2 CoreFoundation 0x1830d7ce4 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x1830d58b0 __CFRunLoopRun + 1424
4 CoreFoundation 0x182ff62d8 CFRunLoopRunSpecific + 436
5 AVFAudio 0x1888bf774 GenericRunLoopThread::Entry(void*) + 164
6 AVFAudio 0x1888ea018 CAPThread::Entry(CAPThread*) + 84
7 libsystem_pthread.dylib 0x182d5c32c _pthread_body + 308
8 libsystem_pthread.dylib 0x182d5c1f8 _pthread_body + 310
9 libsystem_pthread.dylib 0x182d5ac38 thread_start + 4
#10. Thread
0 libsystem_kernel.dylib 0x182c49dbc __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x182d5b144 _pthread_wqthread + 1288
2 libsystem_pthread.dylib 0x182d5ac30 start_wqthread + 4
Frank
I have the same problem, you can check the following steps:
cdto your project's root pathRun
grep -r UIFeedbackGenerator .
Then you will find which library is using UIFeedbackGenerator.
Hope this will help you.
来源：https://stackoverflow.com/questions/46676999/ios-app-crashed-due-to-uifeedbackgenerator-autodeactivate