iOS 8 NSInternalInconsistencyException [英] iOS 8 NSInternalInconsistencyException

问题描述

我收到以下崩溃报告。它们仅出现在iOS 8的设备上。请注意以下消息：

I get the following crash reports. They only occur on devices with iOS 8. Notice the message:

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'this request has been neutered - you can't call -sendResponse: twice nor after encoding it'

崩溃报告：

Date/Time:       2014-08-31T01:39:15Z
OS Version:      iPhone OS 8.0 (12A4345d)
Report Version:  104

Exception Type:  SIGABRT
Exception Codes: #0 at 0x1964cb270
Crashed Thread:  0

Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'this request has been neutered - you can't call -sendResponse: twice nor after encoding it'

Last Exception Backtrace:
0   CoreFoundation                       0x0000000186192084 CFDateGetTimeIntervalSinceDate + 19604
1   libobjc.A.dylib                      0x0000000195d3c0e4 objc_exception_throw + 56
2   CoreFoundation                       0x0000000186191f44 CFDateGetTimeIntervalSinceDate + 19280
3   Foundation                           0x0000000187075e20 _NSSetExceptionRaiser + 340
4   BaseBoard                            0x000000018c1deb90 BSMainScreenOrientation + 4856
5   libdispatch.dylib                    0x000000019638d254 0x19638c000 + 4692
6   libdispatch.dylib                    0x0000000196395d50 dispatch_barrier_sync_f + 1176
7   BaseBoard                            0x000000018c1deae4 BSMainScreenOrientation + 4684
8   UIKit                                0x000000018ac9df88 _UIBackdropViewSettingsColorCancelRed + 28984
9   libdispatch.dylib                    0x000000019638d294 0x19638c000 + 4756
10  libdispatch.dylib                    0x000000019638d254 0x19638c000 + 4692
11  libdispatch.dylib                    0x000000019639103c _dispatch_main_queue_callback_4CF + 952
12  CoreFoundation                       0x00000001861498dc CFRunLoopTimerSetTolerance + 4196
13  CoreFoundation                       0x0000000186147984 _CFRunLoopGet2b + 3316
14  CoreFoundation                       0x0000000186075664 CFRunLoopRunSpecific + 392
15  GraphicsServices                     0x000000018f0a75a4 GSEventRunModal + 164
16  UIKit                                0x000000018a82e164 UIApplicationMain + 1484
17  Taptalk                              0x00000001000bfccc main (main.m:21)
18  libdyld.dylib                        0x00000001963b2a08 _tlv_bootstrap + 232

我无法重现它，但似乎是从后台启动应用程序时发生的。
我应该从哪里开始寻找？

I can't reproduce it, but it seems to happen when starting the app from the background. Where should I start looking?

推荐答案

该错误发生在以下回调中：

The bug was in the following callback:

- （void）application：（UIApplication *）application didReceiveRemoteNotification：（NSDictionary *）userInfo fetchCompletionHandler：（void（^）（UIBackgroundFetchResult result））completionHandler

当你两次调用 completionHandler 时会发生崩溃。这发生在iOS8之后。

The crash occurs when you call the completionHandler twice. This happens after iOS8.

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