我的 iOS 应用程序刚刚因 -[NSManagedObjectContext save:] 上的 NSRangeException 而崩溃。在任何地方都找不到其他有用的东西。我该如何解决这个问题？我没有得到任何内存地址或任何我可以使用的东西......
2015-04-22 14:16:38.078 heavenhelp[33559:1734247] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 6 beyond bounds [0 .. 5]'
*** First throw call stack:
(
0 CoreFoundation 0x0167f746 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x00f40a97 objc_exception_throw + 44
2 CoreFoundation 0x01553b73 -[__NSArrayM objectAtIndex:] + 243
3 CoreData 0x00859cf3 -[NSSQLCore recordToManyChangesForObject:inRow:usingTimestamp:inserted:] + 2531
4 CoreData 0x00856a0b -[NSSQLCore _populateRow:fromObject:timestamp:inserted:] + 2923
5 CoreData 0x00776e24 -[NSSQLCore prepareForSave:] + 1764
6 CoreData 0x00775e3d -[NSSQLCore saveChanges:] + 461
7 CoreData 0x0073f15e -[NSSQLCore executeRequest:withContext:error:] + 638
8 CoreData 0x0083ee75 __65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke + 5349
9 CoreData 0x008492ff gutsOfBlockToNSPersistentStoreCoordinatorPerform + 191
10 libdispatch.dylib 0x035f4bef _dispatch_client_callout + 14
11 libdispatch.dylib 0x035d7b0d _dispatch_barrier_sync_f_invoke + 144
12 libdispatch.dylib 0x035d723f dispatch_barrier_sync_f + 105
13 CoreData 0x008383f7 _perform + 183
14 CoreData 0x0073ec8b -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 459
15 CoreData 0x0076ee09 -[NSManagedObjectContext save:] + 1529
16 heavenhelp 0x000b6834 _TF10heavenhelp11saveContextFT_T_ + 324
17 heavenhelp 0x0015368d _TFC10heavenhelp26ConversationViewController17viewWillDisappearfS0_FSbT_ + 701
18 heavenhelp 0x001536ef _TToFC10heavenhelp26ConversationViewController17viewWillDisappearfS0_FSbT_ + 63
19 UIKit 0x020a4292 -[UIViewController _setViewAppearState:isAnimating:] + 706
20 UIKit 0x020a4904 -[UIViewController __viewWillDisappear:] + 106
21 UIKit 0x020bcd1d -[UIViewController(UIContainerViewControllerProtectedMethods) beginAppearanceTransition:animated:] + 200
22 UIKit 0x020cafec -[UINavigationController _startCustomTransition:] + 1028
23 UIKit 0x020d8e00 -[UINavigationController _startDeferredTransitionIfNeeded:] + 712
24 UIKit 0x020d9a51 -[UINavigationController __viewWillLayoutSubviews] + 57
25 UIKit 0x02253750 -[UILayoutContainerView layoutSubviews] + 213
26 UIKit 0x01fce57a -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 668
27 libobjc.A.dylib 0x00f56771 -[NSObject performSelector:withObject:] + 70
28 QuartzCore 0x01d5ee47 -[CALayer layoutSublayers] + 144
29 QuartzCore 0x01d52925 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 403
30 QuartzCore 0x01d5277a _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 26
31 QuartzCore 0x01caec52 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 284
32 QuartzCore 0x01cb00e5 _ZN2CA11Transaction6commitEv + 487
33 QuartzCore 0x01cb07fc _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 92
34 CoreFoundation 0x015a086e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
35 CoreFoundation 0x015a07b0 __CFRunLoopDoObservers + 400
36 CoreFoundation 0x015961ea __CFRunLoopRun + 1226
37 CoreFoundation 0x01595a5b CFRunLoopRunSpecific + 443
38 CoreFoundation 0x0159588b CFRunLoopRunInMode + 123
39 GraphicsServices 0x046cc2c9 GSEventRunModal + 192
40 GraphicsServices 0x046cc106 GSEventRun + 104
41 UIKit 0x01f3b106 UIApplicationMain + 1526
42 heavenhelp 0x000a5c94 main + 180
43 libdyld.dylib 0x0361fac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
这是我用来使我的save:线程安全的代码:
static var onceToken: dispatch_once_t = 0
static var singleton: CoreDataHelper!
static var sharedInstance: CoreDataHelper {
get {
dispatch_once(&onceToken, {
self.singleton = CoreDataHelper()
})
return singleton
}
}
我的xcdatamodeld(相关部分):
编辑:我编辑了代码以反射(reflect)我的更改，使我的 NSManagedObjectContext 线程安全。我现在所做的一切，都是在我如上所述初始化的 CoreDataHelper 的一个实例上进行的。我发现我可以通过进入一个对话、添加一条消息、进入另一个对话并在那里添加一条消息来触发崩溃。我已经添加了我的 xcdatamodeld。
最佳答案
我显然已将对话和消息之间的一对多关系设置为“有序”。这是不正确的...我已经将 NSManagedObject 的类更改为使用 NSMutableSet 而不是 NSMutableOrderedSet。
显然这会导致保存方法中出现 NSRangeException...
关于ios - -[NSManagedObjectContext 保存 :] 中的数组索引越界问题 (NSRangeException)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29793891/