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我看到 iOS 11 中的触觉反馈引擎出现间歇性崩溃。不幸的是，我没有可重现的步骤，因为它似乎是随机发生的。

以下是异常和堆栈跟踪：

为样式 2 自动停用 <UIImpactFeedbackGenerator: 0x1c850a710:prepared=0> 时引发异常：强制停用 <UIImpactFeedbackGenerator: 0x1c850a710:prepared=0> 样式为未激活的 TurnOn (activationCount = -1) 配置：<_UIImpactFeedbackGeneratorConfiguration: 0x1c80bc920: isEnabled=1, activationStyle=2, requiredSupportLevel=2> activationCount: -1, styleActivationCount: -1 引擎: {( <_UIFeedbackHapticOnlyEngine: 0x1c80db040: state=4, numberOfClients=1, prewarmCount=0, _isSuspended=0> )}

# 平台：ios
# 应用程序：MyApp
# 版本：3.1.0.4
# 包标识符：com.company.myApp
# 问题 #: 8845
# 问题 ID：59ff154761b02d480dd20c28
# 会话 ID：2ec9b043edaa4fcaad12fa480d690e8a_0c4f8c61fbbd11e7924356847afe9799_0_v2
# 日期：2018-01-17T19:31:00Z
# 操作系统版本：11.2.2 (15C202)
# 设备：iPhone 8
# 可用内存：20.8%
# 磁盘空闲：82.9%

#0。崩溃：com.twitter.crashlytics.ios.exception
0 MyApp 0x100d02fb8 CLSProcessRecordAllThreads + 1125008
1 MyApp 0x100d02fb8 CLSProcessRecordAllThreads + 1125008
2 MyApp 0x100d02e74 CLSProcessRecordAllThreads + 1124684
3 MyApp 0x100cf2fa0 CLSHandler + 1059448
4 MyApp 0x100d00fd0 __CLSExceptionRecord_block_invoke + 1116840
5 libdispatch.dylib 0x1853aaa14 _dispatch_client_callout + 16
6 libdispatch.dylib 0x1853e7d4c _dispatch_queue_barrier_sync_invoke_and_complete + 56
7 MyApp 0x100d00a64 CLSExceptionRecord + 1115452
8 MyApp 0x100d0088c CLSExceptionRecordNSException + 1114980
9 MyApp 0x100d004a0 CLSTerminateHandler() + 1113976
10 libc++abi.dylib 0x184c6454c std::__terminate(void (*)()) + 16
11 libc++abi.dylib 0x184c645b8 std::terminate() + 60
12 libobjc.A.dylib 0x184c7476c _destroyAltHandlerList + 10
13 libdispatch.dylib 0x1853aaa28 _dispatch_client_callout + 36
14 libdispatch.dylib 0x1853e7640 _dispatch_continuation_pop$VARIANT$armv81 + 420
15 libdispatch.dylib 0x1853f0858 _dispatch_source_invoke$VARIANT$armv81 + 528
16 libdispatch.dylib 0x1853ebb64 _dispatch_main_queue_callback_4CF$VARIANT$armv81 + 684
17 核心基础 0x1859d6544 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
18 核心基础 0x1859d4120 __CFRunLoopRun + 2012
19 核心基础 0x1858f3e58 CFRunLoopRunSpecific + 436
20 图形服务 0x1877a0f84 GSEventRunModal + 100
21 UIKit 0x18f04867c UIApplicationMain + 236
22 MyApp 0x10049e760 主 (main.mm:34)
23 libdyld.dylib 0x18541056c 开始 + 4

--

致命异常：NSInternalInconsistencyException
0 核心基础 0x185a2e364 __exceptionPreprocess
1 libobjc.A.dylib 0x184c74528 objc_exception_throw
2 核心基础 0x185a2e2ac-[NSException initWithCoder:]
3 UIKit 0x18fa29198-[UIFeedbackGenerator _autoDeactivate]
4 UIKit 0x18fa28ec8 __48-[UIFeedbackGenerator _setupAutoDeactivateTimer]_block_invoke
5 libdispatch.dylib 0x1853aaa14 _dispatch_client_callout
6 libdispatch.dylib 0x1853e7640 _dispatch_continuation_pop$VARIANT$armv81
7 libdispatch.dylib 0x1853f0858 _dispatch_source_invoke$VARIANT$armv81
8 libdispatch.dylib 0x1853ebb64 _dispatch_main_queue_callback_4CF$VARIANT$armv81
9 核心基础 0x1859d6544 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
10 核心基础 0x1859d4120 __CFRunLoopRun
11 核心基础 0x1858f3e58 CFRunLoopRunSpecific
12 图形服务 0x1877a0f84 GSEventRunModal
13 UIKit 0x18f04867c UIApplicationMain
14 MyApp 0x10049e760 主 (main.mm:34)
15 libdyld.dylib 0x18541056c 开始

其他人遇到过这个问题吗？

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