我注意到我的Crashlytics仪表板发生了崩溃，但我不知道为什么会出现这种情况，我认为它是由UIKit造成的（看起来像iPhone 4S键盘有问题请纠正我，如果我＆＃ 39;我错了）。我已经从Crashlytics发布了日志。如果有人能给我一些解决这次崩溃的线索我会很感激。
# Crashlytics - plaintext stacktrace downloaded by xxx at Fri, 17 Nov 2017 13:18:33 GMT
# URL: xxx
# Organization: xxx’s Projects
# Platform: ios
# Application: xxx
# Version: 1.0 (1)
# Bundle Identifier: com.xxx.app
# Issue #: 48
# Issue ID: 5a0e8fda61b02d480d9dd90a
# Session ID: 40dd34a088804902ad63bd4a505cacaa_0d42b6facb6911e7b7d856847afe9799_0_v2
# Date: 2017-11-17T07:25:00Z
# OS Version: 9.3.5 (13G36)
# Device: iPhone 4s
# RAM Free: 39.6%
# Disk Free: 53.6%
#0. Crashed: com.twitter.crashlytics.ios.exception
0 xxx 0x68852d CLSProcessRecordAllThreads
1 xxx 0x68852d CLSProcessRecordAllThreads
2 xxx 0x688425 CLSProcessRecordAllThreads
3 xxx 0x67bbc1 CLSHandler
4 xxx 0x686cb3 __CLSExceptionRecord_block_invoke
5 libdispatch.dylib 0x24c9d80f _dispatch_client_callout
6 libdispatch.dylib 0x24ca901d _dispatch_barrier_sync_f_invoke
7 xxx 0x6866a7 CLSExceptionRecord
8 xxx 0x6864cf CLSExceptionRecordNSException
9 xxx 0x6860d1 CLSTerminateHandler()
10 libc++abi.dylib 0x248bce17 std::__terminate(void (*)()) + 78
11 libc++abi.dylib 0x248bc8f9 __cxa_increment_exception_refcount + 98
12 libobjc.A.dylib 0x248caf5f objc_exception_rethrow + 42
13 CoreFoundation 0x2503f2af CFRunLoopRunSpecific + 654
14 CoreFoundation 0x2503f015 CFRunLoopRunInMode + 108
15 GraphicsServices 0x2662fac9 GSEventRunModal + 160
16 UIKit 0x29713189 UIApplicationMain + 144
17 xxx 0x3454d1 main (main.m:14)
18 libdispatch.dylib 0x24ce7873 (Missing)
--
Fatal Exception: NSInvalidArgumentException
0 CoreFoundation 0x2512f91b __exceptionPreprocess
1 libobjc.A.dylib 0x248cae17 objc_exception_throw
2 CoreFoundation 0x2512f861 -[NSException initWithCoder:]
3 CoreFoundation 0x250859c7 -[__NSCFString hasSuffix:]
4 UIKit 0x29aae795 __49-[UIKeyboardImpl addInputEvent:executionContext:]_block_invoke
5 UIKit 0x29fdb4a9 -[UIKeyboardTaskExecutionContext returnExecutionToParentWithInfo:]
6 UIKit 0x29fdb4a9 -[UIKeyboardTaskExecutionContext returnExecutionToParentWithInfo:]
7 UIKit 0x29aaf56f -[UIKeyboardImpl acceptAutocorrection:executionContextPassingTIKeyboardCandidate:]
8 UIKit 0x29aaec77 -[UIKeyboardImpl acceptAutocorrectionForWordTerminator:executionContextPassingTIKeyboardCandidate:]
9 UIKit 0x29aae56f -[UIKeyboardImpl addInputEvent:executionContext:]
10 UIKit 0x29ab0ceb -[UIKeyboardImpl acceptPredictiveInput:executionContext:]
11 UIKit 0x296d5615 -[UIKeyboardTaskQueue continueExecutionOnMainThread]
12 UIKit 0x29ab0a17 -[UIKeyboardImpl acceptPredictiveInput:]
13 UIKit 0x29bb7815 -[UIKeyboardPredictionView acceptCandidateAtCell:]
14 Foundation 0x2594daf5 __NSFireDelayedPerform
15 CoreFoundation 0x250f258f __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
16 CoreFoundation 0x250f21c1 __CFRunLoopDoTimer
17 CoreFoundation 0x250f000d __CFRunLoopRun
18 CoreFoundation 0x2503f229 CFRunLoopRunSpecific
19 CoreFoundation 0x2503f015 CFRunLoopRunInMode
20 GraphicsServices 0x2662fac9 GSEventRunModal
21 UIKit 0x29713189 UIApplicationMain
22 xxx 0x3454d1 main (main.m:14)
23 libdispatch.dylib 0x24ce7873 (Missing)
#0. Crashed: com.twitter.crashlytics.ios.exception
0 xxx 0x68852d CLSProcessRecordAllThreads
1 xxx 0x68852d CLSProcessRecordAllThreads
2 xxx 0x688425 CLSProcessRecordAllThreads
3 xxx 0x67bbc1 CLSHandler
4 xxx 0x686cb3 __CLSExceptionRecord_block_invoke
5 libdispatch.dylib 0x24c9d80f _dispatch_client_callout
6 libdispatch.dylib 0x24ca901d _dispatch_barrier_sync_f_invoke
7 xxx 0x6866a7 CLSExceptionRecord
8 xxx 0x6864cf CLSExceptionRecordNSException
9 xxx 0x6860d1 CLSTerminateHandler()
10 libc++abi.dylib 0x248bce17 std::__terminate(void (*)()) + 78
11 libc++abi.dylib 0x248bc8f9 __cxa_increment_exception_refcount + 98
12 libobjc.A.dylib 0x248caf5f objc_exception_rethrow + 42
13 CoreFoundation 0x2503f2af CFRunLoopRunSpecific + 654
14 CoreFoundation 0x2503f015 CFRunLoopRunInMode + 108
15 GraphicsServices 0x2662fac9 GSEventRunModal + 160
16 UIKit 0x29713189 UIApplicationMain + 144
17 xxx 0x3454d1 main (main.m:14)
18 libdispatch.dylib 0x24ce7873 (Missing)
#1. com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x24dbc2f8 kevent_qos + 24
1 libdispatch.dylib 0x24cb1d61 _dispatch_mgr_invoke
2 libdispatch.dylib 0x24cb1abf _dispatch_mgr_thread$VARIANT$mp
#2. com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x24da68d0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x24da66d5 mach_msg + 40
2 CoreFoundation 0x250f1ac5 __CFRunLoopServiceMachPort + 136
3 CoreFoundation 0x250efe4d __CFRunLoopRun + 1036
4 CoreFoundation 0x2503f229 CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2503f015 CFRunLoopRunInMode + 108
6 CFNetwork 0x256909f7 +[NSURLConnection(Loader) _resourceLoadLoop:] + 486
7 Foundation 0x259594a5 __NSThread__start__ + 1148
8 libsystem_pthread.dylib 0x24e6385b _pthread_body + 138
9 libsystem_pthread.dylib 0x24e637cf _pthread_start + 110
10 libsystem_pthread.dylib 0x24e61724 thread_start + 8
#3. com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x24dbaeec __select + 20
1 CoreFoundation 0x250f6f13 __CFSocketManager + 566
2 libsystem_pthread.dylib 0x24e6385b _pthread_body + 138
3 libsystem_pthread.dylib 0x24e637cf _pthread_start + 110
4 libsystem_pthread.dylib 0x24e61724 thread_start + 8
#4. com.twitter.crashlytics.ios.MachExceptionServer
0 libsystem_kernel.dylib 0x24da68d0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x24da66d5 mach_msg + 40
2 xxx 0x67730f CLSMachExceptionServer
3 libsystem_pthread.dylib 0x24e6385b _pthread_body + 138
4 libsystem_pthread.dylib 0x24e637cf _pthread_start + 110
5 libsystem_pthread.dylib 0x24e61724 thread_start + 8
#5. com.squareup.SocketRocket.NetworkThread
0 libsystem_kernel.dylib 0x24da68d0 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x24da66d5 mach_msg + 40
2 CoreFoundation 0x250f1ac5 __CFRunLoopServiceMachPort + 136
3 CoreFoundation 0x250efe4d __CFRunLoopRun + 1036
4 CoreFoundation 0x2503f229 CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2503f015 CFRunLoopRunInMode + 108
6 Foundation 0x25888045 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 268
7 xxx 0x791f49 -[_FSRRunLoopThread main] (FSRWebSocket.m:1840)
8 Foundation 0x259594a5 __NSThread__start__ + 1148
9 libsystem_pthread.dylib 0x24e6385b _pthread_body + 138
10 libsystem_pthread.dylib 0x24e637cf _pthread_start + 110
11 libsystem_pthread.dylib 0x24e61724 thread_start + 8
#6. Thread
0 libsystem_pthread.dylib 0x24e61710 start_wqthread + 14
#7. Thread
0 libsystem_kernel.dylib 0x24dbb864 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x24e61b35 _pthread_wqthread + 1036
2 libsystem_pthread.dylib 0x24e61718 start_wqthread + 8
#8. Thread
0 libsystem_kernel.dylib 0x24dbb864 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x24e61b35 _pthread_wqthread + 1036
2 libsystem_pthread.dylib 0x24e61718 start_wqthread + 8
#9. Thread
0 libsystem_kernel.dylib 0x24dbb864 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x24e61b35 _pthread_wqthread + 1036
2 libsystem_pthread.dylib 0x24e61718 start_wqthread + 8
#10. Thread
0 libsystem_pthread.dylib 0x24e61710 start_wqthread + 14
#11. Thread
0 libsystem_kernel.dylib 0x24dbb864 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x24e61b35 _pthread_wqthread + 1036
2 libsystem_pthread.dylib 0x24e61718 start_wqthread + 8