ios – 在setValue上崩溃：forKey：

概述Crashlytics在我的应用程序中报告了崩溃,我不知道发生了什么. 这是堆栈跟踪： Thread : Fatal Exception: NSInternalInconsistencyException0 CoreFoundation 0x30080e83 __exceptionPreprocess + 1301 libobjc.A.dylib Crashlytics在我的应用程序中报告了崩溃,我不知道发生了什么.

这是堆栈跟踪：

Thread : Fatal Exception: NSInternalinconsistencyException0  CoreFoundation                 0x30080e83 __exceptionPreprocess + 1301  libobjc.A.dylib                0x3a3dd6c7 objc_exception_throw + 382  CoreData                       0x2fdcf941 -[NSsqliteStatement cachedsqliteStatement]3  CoreData                       0x2fdcf18d -[NSsqliteConnection preparesqlStatement:] + 524  CoreData                       0x2fde8edf -[NSsqlChannel selectRowsWithCachedStatement:] + 585  CoreData                       0x2fea8e1f newFetchedRowsForFetchPlan_MT + 9106  CoreData                       0x2fde8949 -[NSsqlCore fetchRowForObjectID:] + 11807  CoreData                       0x2fde8311 -[NSsqlCore newValuesForObjectWithID:withContext:error:] + 2568  CoreData                       0x2fde762b _PFFaultHandlerLookupRow + 3989  CoreData                       0x2fde7193 _PF_FulfillDeferredFault + 21810 CoreData                       0x2fdf6449 _PF_Managedobject_WillChangeValueForKeyIndex + 6811 CoreData                       0x2fdf636b _sharedIMPL_setvfk_core + 11012 CoreData                       0x2fe1995d _PF_Handler_Public_SetProperty + 9213 CoreData                       0x2fe1e2a9 -[NSManagedobject setValue:forKey:] + 12414 Application                    0x0004dc45 -[DateFormatter storeValue:error:] (DateFormatter.m:65)15 Application                    0x0004ee17 -[Formatter storeValue:inObject:] (Formatter.m:176)16 Application                    0x0002b5c5 -[NSManagedobject(App) setValuesForKeysWithReceivedDictionary:] (NSManagedobject+App.m:320)17 Application                    0x0002b8f3 -[NSManagedobject(App) setValuesForKeysWithReceivedDictionary:] (NSManagedobject+App.m:377)18 Application                    0x0006352d -[ODataGetoperation processResult:] (ODataGetoperation.m:220)19 Application                    0x0004420b -[ODataOperation connectionDIDFinishLoading:] (ODataOperation.m:741)20 Foundation                     0x309bb47f __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 5421 Foundation                     0x309bb3c1 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 20422 Foundation                     0x309bb2dd -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 6023 CFNetwork                      0x2fceaf8f ___ZN27URLConnectionClIEnt_Classic26_delegate_dIDFinishLoadingEU13block_pointerFvvE_block_invoke + 7424 CFNetwork                      0x2fce9b8f ___ZN27URLConnectionClIEnt_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClIEntCurrent_VMaxE_block_invoke_2 + 5425 CFNetwork                      0x2fd1b337 ___ZNK17CoreSchedulingSet13_performAsyncEPKcU13block_pointerFvvE_block_invoke + 1826 CoreFoundation                 0x2ffb3ea1 CFArrayApplyFunction + 3627 CFNetwork                      0x2fc81e05 RunloopBlockContext::perform() + 16428 CFNetwork                      0x2fc81cd5 MultiplexerSource::perform() + 22029 CFNetwork                      0x2fc81b65 MultiplexerSource::_perform(voID*) + 4830 CoreFoundation                 0x3004bf1f __CFRUNLOOP_IS_CALliNG_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 1431 CoreFoundation                 0x3004b3e7 __CFRunLoopDoSources0 + 20632 CoreFoundation                 0x30049bd7 __CFRunLoopRun + 63033 CoreFoundation                 0x2ffb4471 CFRunLoopRunspecific + 52434 CoreFoundation                 0x2ffb4253 CFRunLoopRunInMode + 10635 Foundation                     0x309a2697 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 25436 Application                    0x00043b4b -[ODataOperation send] (ODataOperation.m:548)37 Application                    0x0004277f -[ODataOperation operationWillStartPreparingData] (ODataOperation.m:131)38 Foundation                     0x30a5396d __NSOQSchedule_f + 6039 libdispatch.dylib              0x3a8c64b7 _dispatch_async_redirect_invoke + 11040 libdispatch.dylib              0x3a8c77d9 _dispatch_root_queue_drain + 22441 libdispatch.dylib              0x3a8c79c5 _dispatch_worker_thread2 + 5642 libsystem_pthread.dylib        0x3a9f1dff _pthread_wqthread + 29843 libsystem_pthread.dylib        0x3a9f1cc4 start_wqthread + 8

最后一个方法在NSManagedobject子类中调用setValue：forKey :.

- (BOol)storeValue:(voID *)theValue error:(NSError **)theError{    Nsstring * value = (__brIDge Nsstring *)theValue;    Nsstring * errorMessage = nil;        if (![value length] && !isOptional)        errorMessage = [Nsstring stringWithFormat: NSLocalizedString(@"Value cannot be nil or empty (Date) for fIEld %@",@""),varname];        else        {        NSDate * date = nil;        if ([value length])        {            date = [NSDate dateWithISO8601: value];            if (!date)                errorMessage = [Nsstring stringWithFormat: NSLocalizedString(@"InvalID date %@ for fIEld %@",theValue,varname];        }        if (Ivaraddress)            *((__strong NSDate **) Ivaraddress) = date;        else            [currentObject setValue: date forKey: varname];        }    if (errorMessage)    {        if (theError)            *theError = [NSError errorWithDomain: AppDomain code: NSFormattingError userInfo: @{ NSLocalizedDescriptionKey: errorMessage }];#ifdef DEBUG        NSLog(@"Formatter error: %@",errorMessage);#endif        return NO;    }    return YES;}

我对任何建议完全开放:)

更新：密钥存在,并且设置的值是NSDate,因此它是NSManagedobject的属性,而不是关系.

更新2：

我还有另一个崩溃的方法(堆栈跟踪不完全相同)：

Thread : Fatal Exception: NSInternalinconsistencyException0  CoreFoundation                 0x30080e83 __exceptionPreprocess + 1301  libobjc.A.dylib                0x3a3dd6c7 objc_exception_throw + 382  CoreData                       0x2fddfacb -[NSsqlCore _obtainopenChannel] + 2343  CoreData                       0x2fea8ded newFetchedRowsForFetchPlan_MT + 8604  CoreData                       0x2fde8949 -[NSsqlCore fetchRowForObjectID:] + 11805  CoreData                       0x2fde8311 -[NSsqlCore newValuesForObjectWithID:withContext:error:] + 2566  CoreData                       0x2fde762b _PFFaultHandlerLookupRow + 3987  CoreData                       0x2fde7193 _PF_FulfillDeferredFault + 2188  CoreData                       0x2fdf6449 _PF_Managedobject_WillChangeValueForKeyIndex + 689  CoreData                       0x2fdf636b _sharedIMPL_setvfk_core + 11010 CoreData                       0x2fe1995d _PF_Handler_Public_SetProperty + 9211 CoreData                       0x2fe1e2a9 -[NSManagedobject setValue:forKey:] + 12412  Application               0x000fcc45 -[DateFormatter storeValue:error:] (DateFormatter.m:65)13  Application               0x000fde17 -[Formatter storeValue:inObject:] (Formatter.m:176)14  Application               0x000da5c5 -[NSManagedobject(App) setValuesForKeysWithReceivedDictionary:] (NSManagedobject+.m:320)15  Application               0x000da8f3 -[NSManagedobject(App) setValuesForKeysWithReceivedDictionary:] (NSManagedobject+.m:377)16  Application               0x0011252d -[ODataGetoperation processResult:] (ODataGetoperation.m:220)17  Application               0x000f320b -[ODataOperation connectionDIDFinishLoading:] (ODataOperation.m:741)18 Foundation                     0x309bb47f __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 5419 Foundation                     0x309bb3c1 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 20420 Foundation                     0x309bb2dd -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 60

异常消息也不同：

_obtainopenChannel – NSsqlCore 0x15ef3780：没有可用的数据库通道

但我认为它们是两个相关的问题.

解决方法 所以我终于找到了与多线程/并发问题相关的原因.基本上同时更新两个线程上的相同对象..

最近添加的核心数据调试标志(-com.apple.CoreData.ConcurrencyDeBUG 1)用于确定发生了什么.

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