I am following the official tutorial. I am stuck in chapter 3 right now. It is quite weird that I get log like this
Successfully transferred app.routing.ts.
Successfully transferred app.module.ts.
Successfully transferred app.module.js.
Refreshing application...
Successfully synced application org.nativescript.Groceries on device 2CB64AE2-E31B-4B15-ACA5-B501400C2814.
1 0x10dac0d4b NativeScript::FFICallback<NativeScript::ObjCMethodCallback>::ffiClosureCallback(ffi_cif*, void*, void**, void*)
2 0x10e16428e ffi_closure_unix64_inner
3 0x10e164bd2 ffi_closure_unix64
4 0x1107f2245 -[UIViewController __viewWillAppear:]
5 0x110833aa2 -[UINavigationController _startTransition:fromViewController:toViewController:]
6 0x11083492f -[UINavigationController _startDeferredTransitionIfNeeded:]
7 0x110835b90 -[UINavigationController __viewWillLayoutSubviews]
8 0x110a8c2ae -[UILayoutContainerView layoutSubviews]
9 0x11071c551 -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
10 0x1147524ba -[CALayer layoutSublayers]
11 0x1147565a9 CA::Layer::layout_if_needed(CA::Transaction*)
12 0x1146df1cd CA::Context::commit_transaction(CA::Transaction*)
13 0x11470aae4 CA::Transaction::commit()
14 0x110669706 __34-[UIApplication _firstCommitBlock]_block_invoke_2
15 0x11282c20c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__
16 0x112810a3b __CFRunLoopDoBlocks
17 0x112810214 __CFRunLoopRun
18 0x11280fa89 CFRunLoopRunSpecific
19 0x1140179c6 GSEventRunModal
20 0x11064dd30 UIApplicationMain
21 0x10e164a2d ffi_call_unix64
22 0x1353bbc60
file:///app/tns_modules/nativescript-angular/resource-loader.js:23:101: JS ERROR Error: File /Users/zhouyuan/Library/Developer/CoreSimulator/Devices/2CB64AE2-E31B-4B15-ACA5-B501400C2814/data/Containers/Bundle/Application/C64D6180-4E51-4808-9AD5-09E0B329379A/Groceries.app/app/pages/login/pages/login/login.html does not exist. Resolved from: /Users/zhouyuan/Library/Developer/CoreSimulator/Devices/2CB64AE2-E31B-4B15-ACA5-B501400C2814/data/Containers/Bundle/Application/C64D6180-4E51-4808-9AD5-09E0B329379A/Groceries.app/app/pages/login/pages/login/login.html.
I am pretty sure it should be /app/pages/login/login.html but the error says app/pages/login/pages/login/login.html. Anyone knows why this happens?
I guess you are using angular-nativescript from seeing app.routing.ts
in login.ts you can define your component like:
#Component({
selector: "my-app",
moduleId: module.id,
templateUrl: "./login.html"
})
or
#Component({
selector: "my-app",
templateUrl: "pages/login/login.html",
})
if you want to use the relative path, add moduleId: module.id
When you are changing the component name, check carefully you changed everything. I missed out to change html and css name of that component.
Below templateUrl and styleUrls i forgot to change the name.that is what i got the error.
#Component({
selector: "my-modal",
templateUrl: "pages/address.modal.html",
styleUrls: ["pages/address.modal.css"]
})
Related
The default core data code is throwing an error for some reason. This just started happening after I attempted to migrate to a new version of the data model, so I'm sure I did something to screw this up. Here's the relevant code:
enter colazy var managedObjectModel: NSManagedObjectModel = {
// The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
let modelURL = Bundle.main.url(forResource: "Band_Manager_2_0", withExtension: "momd")!
return NSManagedObjectModel(contentsOf: modelURL)!
}()
The line throwing the error is this one:
enter let modelURL = Bundle.main.url(forResource: "Band_Manager_2_0", withExtension: "momd")!code here
And here is the error:
fatal error: unexpectedly found nil while unwrapping an Optional value
2017-04-21 14:17:01.620046-0400 Band Manager 2.0[5826:164435] fatal error: unexpectedly found nil while unwrapping an Optional value
Current stack trace:
0 libswiftCore.dylib 0x0000000100425160 swift_reportError + 129
1 libswiftCore.dylib 0x0000000100441b80 _swift_stdlib_reportFatalError + 60
2 libswiftCore.dylib 0x0000000100231a00 specialized specialized StaticString.withUTF8Buffer<A> ((UnsafeBufferPointer<UInt8>) -> A) -> A + 342
3 libswiftCore.dylib 0x00000001003acec0 partial apply for (_fatalErrorMessage(StaticString, StaticString, file : StaticString, line : UInt, flags : UInt32) -> Never).(closure #2) + 109
4 libswiftCore.dylib 0x0000000100231a00 specialized specialized StaticString.withUTF8Buffer<A> ((UnsafeBufferPointer<UInt8>) -> A) -> A + 342
5 libswiftCore.dylib 0x000000010035f4a0 specialized _fatalErrorMessage(StaticString, StaticString, file : StaticString, line : UInt, flags : UInt32) -> Never + 96
6 Band Manager 2.0 0x000000010005f500 AppDelegate.(managedObjectModel.getter).(closure #1) + 463
7 Band Manager 2.0 0x000000010005d8d0 AppDelegate.managedObjectModel.getter + 194
8 Band Manager 2.0 0x000000010005f880 AppDelegate.(persistentStoreCoordinator.getter).(closure #1) + 1115
9 Band Manager 2.0 0x000000010005dad0 AppDelegate.persistentStoreCoordinator.getter + 211
10 Band Manager 2.0 0x0000000100061020 AppDelegate.(managedObjectContext.getter).(closure #1) + 35
11 Band Manager 2.0 0x000000010005dce0 AppDelegate.managedObjectContext.getter + 211
12 Band Manager 2.0 0x000000010005a0d0 AppDelegate.applicationDidFinishLaunching(Notification) -> () + 51
13 Band Manager 2.0 0x000000010005d530 #objc AppDelegate.applicationDidFinishLaunching(Notification) -> () + 71
14 CoreFoundation 0x00007fff85d1c520 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
15 CoreFoundation 0x00007fff85d1c280 _CFXRegistrationPost + 427
16 CoreFoundation 0x00007fff85d1c160 ___CFXNotificationPost_block_invoke + 50
17 CoreFoundation 0x00007fff85cd9f90 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 2018
18 CoreFoundation 0x00007fff85cd94c0 _CFXNotificationPost + 667
19 Foundation 0x00007fff8771a955 -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
20 AppKit 0x00007fff839439f6 -[NSApplication _postDidFinishNotification] + 297
21 AppKit 0x00007fff839437b4 -[NSApplication _sendFinishLaunchingNotification] + 208
22 AppKit 0x00007fff838069c1 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 552
23 AppKit 0x00007fff838065a6 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 661
24 Foundation 0x00007fff87765cfb -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 290
25 Foundation 0x00007fff87765c31 _NSAppleEventManagerGenericHandler + 102
26 AE 0x00007fff86b6ad06 aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 544
27 AE 0x00007fff86b6ac76 dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 39
28 AE 0x00007fff86b6aa71 aeProcessAppleEvent + 312
29 HIToolbox 0x00007fff85277da8 AEProcessAppleEvent + 55
30 AppKit 0x00007fff838019c4 _DPSNextEvent + 1833
31 AppKit 0x00007fff83f7cd72 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2796
32 AppKit 0x00007fff837f640d -[NSApplication run] + 926
33 AppKit 0x00007fff837c0d09 NSApplicationMain + 1237
34 Band Manager 2.0 0x00000001000613d0 main + 13
35 libdyld.dylib 0x00007fff9b8ad234 start + 1
(lldb)
I'm hoping someone will have some insight as to how to fix this. I'm relatively new to core data and it's brought my coding to a complete standstill as, of course, the app crashes immediately after launch.
Thanks!
UPDATE: I should clarify, that I understand the technical reason why this is happening (not finding a resource needed) but I have no idea how to fix this. The resource which it can't seem to find is something that was automatically generated at some point in the past. I can't seem to figure out how to get XCODE to regenerate the needed file, or even why it went missing in the first place.
Ok. So I figured this one out...
About a week ago, I renamed the core data file to from "Band Manager_2_0" to "bmData", and for the past week everything has been working fine. However, today, while I was migrating data, it finally "broke" the connection.
I have no idea why the connection didn't break immediately upon renaming the file, which would have clued me into the problem. It must have cashed the location in a way that I disrupted today.
What is particularly confusing is that the code is looked for an extension of "momd", however the actual file has an extension of .xcdatamodeld... obviously something behind the scenes in XCODE 8.
Regardless, this problem has been solved.
I am using the recent facebook sdk and parse sdk for ios. When i try to run my app on the simulator i get the following error:
ParseStarterProject-Swift[2841:107652] -[PFUserAuthenticationController authenticationDelegateForAuthType:]: unrecognized selector sent to instance 0x7fd0bbc34620
2015-09-30 00:56:33.960 ParseStarterProject-Swift[2841:107652] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[PFUserAuthenticationController authenticationDelegateForAuthType:]: unrecognized selector sent to instance 0x7fd0bbc34620'
This error is when i call the facebook application in my appdelegate file.
PFFacebookUtils.initializeFacebookWithApplicationLaunchOptions(launchOptions)
The following is my stack trace.
First throw call stack:
(
0 CoreFoundation 0x00000001102cef65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000011280fdeb objc_exception_throw + 48
2 CoreFoundation 0x00000001102d758d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x0000000110224f7a ___forwarding___ + 970
4 CoreFoundation 0x0000000110224b28 _CF_forwarding_prep_0 + 120
5 ParseStarterProject-Swift 0x000000010f06fdf5 +[PFFacebookUtils _authenticationProvider] + 139
6 ParseStarterProject-Swift 0x000000010f06fe4c +[PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:] + 48
7 ParseStarterProject-Swift 0x000000010ef42f50 _TFC25ParseStarterProject_Swift11AppDelegate11applicationfS0_FTCSo13UIApplication29didFinishLaunchingWithOptionsGSqGVSs10DictionaryCSo8NSObjectPSs9AnyObject____Sb + 2160
8 ParseStarterProject-Swift 0x000000010ef43903 _TToFC25ParseStarterProject_Swift11AppDelegate11applicationfS0_FTCSo13UIApplication29didFinishLaunchingWithOptionsGSqGVSs10DictionaryCSo8NSObjectPSs9AnyObject____Sb + 179
9 UIKit 0x000000011138f4ca -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 272
10 UIKit 0x0000000111390670 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3415
11 UIKit 0x0000000111396e15 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1755
12 UIKit 0x0000000111393ff0 -[UIApplication workspaceDidEndTransaction:] + 188
13 FrontBoardServices 0x0000000113ef37ac -[FBSSerialQueue _performNext] + 192
14 FrontBoardServices 0x0000000113ef3b1a -[FBSSerialQueue _performNextFromRunLoopSource] + 45
15 CoreFoundation 0x00000001101fb0a1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
16 CoreFoundation 0x00000001101f0fcc __CFRunLoopDoSources0 + 556
17 CoreFoundation 0x00000001101f0483 __CFRunLoopRun + 867
18 CoreFoundation 0x00000001101efe98 CFRunLoopRunSpecific + 488
19 UIKit 0x000000011139398d -[UIApplication _run] + 402
20 UIKit 0x0000000111398676 UIApplicationMain + 171
21 ParseStarterProject-Swift 0x000000010ef449dd main + 109
22 libdyld.dylib 0x00000001133e492d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
I managed to fix this error doing the following:
First I deployed the official version of Parse Server (instead of Rob's version). Open this link and click 'Deploy to Heroku', follow the steps. https://github.com/ParsePlatform/parse-server-example
After that I downloaded the Parse Frameworks (including Facebook framework) from the link below and replaced all current frameworks in my project with these frameworks downloaded. https://parse.com/downloads/ios/parse-library/latest
Other than that just follow the class steps (adding code to AppDelegate, Info.pslist e etc.
Any problems, let me know.
I had my iOS App up to 98% completed on Xcode 4.6 and iOS 6.1 and it's working OK.
But then problems begin when I try to update my Xcode to version 5 and the SDK to iOS 7.
When I try to run the app on Xcode 5 but with iOS 6.1 it continues working ok, but when I tried to run on SDK 7 I have these issues:
2013-12-17 19:44:47.656 myAPP[2207:70b] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<MKUserLocation 0x9d9af90> valueForUndefinedKey:]: this class is not key value coding-compliant for the key distanceAnnotation.'
*** First throw call stack:
(
0 CoreFoundation 0x01bf65e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x019798b6 objc_exception_throw + 44
2 CoreFoundation 0x01c866a1 -[NSException raise] + 17
3 Foundation 0x0142d8ca -[NSObject(NSKeyValueCoding) valueForUndefinedKey:] + 282
4 Foundation 0x0139a921 _NSGetUsingKeyValueGetter + 81
5 Foundation 0x01399f5b -[NSObject(NSKeyValueCoding) valueForKey:] + 260
6 Foundation 0x013b9a5a -[NSObject(NSKeyValueCoding) valueForKeyPath:] + 409
7 Foundation 0x013c68c6 _sortedObjectsUsingDescriptors + 380
8 Foundation 0x013c66d7 -[NSMutableArray(NSKeyValueSorting) sortUsingDescriptors:] + 578
9 myapp
0x00009e50 -[mapa mapViewDidFinishLoadingMap:] + 496
10 MapKit 0x0037e974 -[MKMapView mapViewDidFinishLoadingTiles:] + 78
11 VectorKit 0x050a3ade -[VKMapView mapDidFinishLoadingTiles:] + 78
12 VectorKit 0x050abe4e -[VKMapCanvas mapModelDidFinishLoadingTiles:] + 46
13 VectorKit 0x050b82cd -[VKMapModel didStopLoadingTilesWithError:] + 77
14 VectorKit 0x051ae2e1 -[VKTileProvider didStopLoadingTilesWithError:] + 49
15 VectorKit 0x051b1c99 -[VKTileSource didFinishWithNetwork] + 73
16 VectorKit 0x051c3aa3 __41-[VKResourcesTileSource performDownload:]_block_invoke73 + 51
17 GeoServices 0x04bb98a6 ___ZNK49-[GEOTileLoaderInternal _loadedTile:forKey:info:]66__49-[GEOTileLoaderInternal _loadedTile:forKey:info:]_block_invoke3$_1clERKN8LoadItem9RequesterE_block_invoke_2 + 85
18 libdispatch.dylib 0x021f77f8 _dispatch_call_block_and_release + 15
19 libdispatch.dylib 0x0220c4b0 _dispatch_client_callout + 14
20 libdispatch.dylib 0x021fa75e _dispatch_main_queue_callback_4CF + 340
21 CoreFoundation 0x01c5ba5e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14
22 CoreFoundation 0x01b9c6bb __CFRunLoopRun + 1963
23 CoreFoundation 0x01b9bac3 CFRunLoopRunSpecific + 467
24 CoreFoundation 0x01b9b8db CFRunLoopRunInMode + 123
25 GraphicsServices 0x033579e2 GSEventRunModal + 192
26 GraphicsServices 0x03357809 GSEventRun + 104
27 UIKit 0x004dad3b UIApplicationMain + 1225
28 FarmValencia 0x000029ad main + 141
29 libdyld.dylib 0x0249e70d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Theres simply not enough information to correctly debug this item.
I can recommend however that you add a Breakpoint for all Exceptions
Here is an example of adding an All Exception breakpoint in XCode 4. The process is the same in XCode 5
http://www.alauda.ro/2013/02/03/xcode-4-exception-breakpoints/
Aside from that you may try working with NSSetUncaughtExceptionHandler
http://www.cocoawithlove.com/2010/05/handling-unhandled-exceptions-and.html
This will allow you to trap the error and output the results but bear in mind that this is something you should only do during debug.
Wrapping it in an "#if DEBUG" is a good idea.
I hope this helps you out. These kind of bugs are a pain to fix.
NOTE
You may check if the key value set you are using didn't change between SDK's
Are you by chance sending the message valueForUndefinedKey: to the class MKUserLocation?
Here's what the class reference says about getting user location:
"The MKUserLocation class defines a specific type of annotation that identifies the user’s current location. You do not create instances of this class directly. Instead, you retrieve an existing MKUserLocation object from the userLocation property of the map view displayed in your application."
https://developer.apple.com/library/ios/documentation/MapKit/Reference/MKUserLocation_Class/Reference/Reference.html
So, when developing, I get a crash when running the app in iPhone simulator. Say something like this in the console...
2010-08-01 19:28:04.228 FakeCreme[32888:207] adding bucket: (null)
2010-08-01 19:28:04.230 FakeCreme[32888:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSMutableArray insertObject:atIndex:]: attempt to insert nil object at 0'
*** Call stack at first throw:
(
0 CoreFoundation 0x02641919 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x0278f5de objc_exception_throw + 47
2 CoreFoundation 0x0263b571 -[__NSArrayM insertObject:atIndex:] + 225
3 CoreFoundation 0x026369c4 -[__NSArrayM addObject:] + 68
4 FakeCreme 0x0000b645 -[BucketsTable didReceiveEvents:withVerb:forDomain:] + 557
5 FakeCreme 0x0002e2fa -[EventManager addObject:withVerb:inDomain:] + 3206
6 FakeCreme 0x0000a7a8 -[BucketsTable viewDidLoad] + 1389
7 UIKit 0x003cac26 -[UIViewController view] + 179
8 UIKit 0x003c9050 -[UIViewController contentScrollView] + 42
9 UIKit 0x003d8df7 -[UINavigationController _computeAndApplyScrollContentInsetDeltaForViewController:] + 48
10 UIKit 0x003d74ff -[UINavigationController _layoutViewController:] + 43
11 UIKit 0x003d8789 -[UINavigationController _startTransition:fromViewController:toViewController:] + 524
12 UIKit 0x003d3329 -[UINavigationController _startDeferredTransitionIfNeeded] + 266
13 UIKit 0x004ee209 -[UILayoutContainerView layoutSubviews] + 226
14 QuartzCore 0x040e50d5 -[CALayer layoutSublayers] + 177
15 QuartzCore 0x040e4e05 CALayerLayoutIfNeeded + 220
16 QuartzCore 0x040e464c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 302
17 QuartzCore 0x040e42b0 _ZN2CA11Transaction6commitEv + 292
18 UIKit 0x0032563f -[UIApplication _reportAppLaunchFinished] + 39
19 UIKit 0x00325a68 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 545
20 UIKit 0x0032f452 -[UIApplication handleEvent:withNewEvent:] + 1958
21 UIKit 0x00328074 -[UIApplication sendEvent:] + 71
22 UIKit 0x0032cac4 _UIApplicationHandleEvent + 7495
23 GraphicsServices 0x02cbbafa PurpleEventCallback + 1578
24 CoreFoundation 0x02622dc4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
25 CoreFoundation 0x02583737 __CFRunLoopDoSource1 + 215
26 CoreFoundation 0x025809c3 __CFRunLoopRun + 979
27 CoreFoundation 0x02580280 CFRunLoopRunSpecific + 208
28 CoreFoundation 0x025801a1 CFRunLoopRunInMode + 97
29 UIKit 0x00325226 -[UIApplication _run] + 625
30 UIKit 0x00330b58 UIApplicationMain + 1160
31 FakeCreme 0x000025a0 main + 102
32 FakeCreme 0x00002531 start + 53
33 ??? 0x00000001 0x0 + 1
)
terminate called after throwing an instance of 'NSException'
(Details of crash don't matter, just an illustration.)
Now, it used to be the case that when I get such a crash, I can run Xcode debugger and get the call trace conveniently loaded there, so that the debugger loads the call stack and I can interactively navigate in the methods that were called just at the time.
But ever since installing Xcode 3.2.3 and/or switching computers, this doesn't work. I load debugger at this point where my app is halted, but it comes up empty, no call stack.
I'm sure there is an Xcode setting I have missed somewhere, but didn't find anything on my own quickly glancing through settings. What do I need to do to get the call stack loaded in debugger at this point?
Sometimes, for some reason the XCode debugger stops in a place where it simply cannot pick up debug values. I've seen it when trying to stop in callbacks for animations. There's not a setting you can really chose to fix this (though you should check you are running in Debugn and not Release, and that debugging symbol generation is still checked in project settings).
You might try using the LLVM debugger in XCode 4.
However, to solve your particular problem - it seems pretty clear you are trying to insert an object into an array in +didReceiveEvents:WithVerb:ForDomain: in BucketsTable, where you are inserting some point too far after the last element in the array. You might try an NSLog around any array insert there with index and object values.
I am getting a (what seems to me as a strange) crash with Core Data.
From what I can gather it is happening when Core Data does a save and subsequent managedObjectContextDidSave methods are fired.
I am at a loss and really hoping someone can help me out or guide me in the right direction.
The crash report is as follows:
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000b
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x000026f4 objc_msgSend + 16
1 Foundation 0x000437a4 NSClassFromObject + 8
2 Foundation 0x0000ba54 _NSIMPForObjectAndSelector + 4
3 Foundation 0x00095eae -[NSSortDescriptor compareObject:toObject:] + 110
4 CoreData 0x000b0a6e +[NSFetchedResultsController(PrivateMethods) _insertIndexForObject:inArray:lowIdx:highIdx:sortDescriptors:] + 174
5 CoreData 0x000b1496 -[NSFetchedResultsController(PrivateMethods) _postprocessInsertedObjects:] + 342
6 CoreData 0x000b32d6 -[NSFetchedResultsController(PrivateMethods) _postprocessUpdatedObjects:] + 430
7 CoreData 0x000b2a5e -[NSFetchedResultsController(PrivateMethods) _managedObjectContextDidChange:] + 498
8 Foundation 0x0004bbf6 _nsnote_callback + 162
9 CoreFoundation 0x00050af2 _CFXNotificationPostNotification + 298
10 Foundation 0x000497f4 -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
11 CoreData 0x0002e42e -[NSManagedObjectContext(_NSInternalNotificationHandling) _postObjectsDidChangeNotificationWithUserInfo:] + 66
12 CoreData 0x0007fd26 -[NSManagedObjectContext(_NSInternalChangeProcessing) _createAndPostChangeNotification:withDeletions:withUpdates:withRefreshes:] + 134
13 CoreData 0x0001670a -[NSManagedObjectContext(_NSInternalChangeProcessing) _postRefreshedObjectsNotificationAndClearList] + 70
14 CoreData 0x000164ac -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:] + 1656
15 CoreData 0x0004b5fa -[NSManagedObjectContext processPendingChanges] + 10
16 CoreData 0x0003e2a4 _performRunLoopAction + 120
17 CoreFoundation 0x0000fb50 __CFRunLoopDoObservers + 420
18 CoreFoundation 0x00056a32 CFRunLoopRunSpecific + 1734
19 CoreFoundation 0x00056356 CFRunLoopRunInMode + 42
20 GraphicsServices 0x00003cb8 GSEventRunModal + 108
21 GraphicsServices 0x00003d64 GSEventRun + 56
22 UIKit 0x00002768 -[UIApplication _run] + 384
23 UIKit 0x0000146c UIApplicationMain + 688
24 MyApp 0x000022d2 main (main.m:14)
25 MyApp 0x00002248 start + 44
It looks like one of the items in one of your database arrays is getting released one too many times (and therefore gets deallocated). It's crashing trying to sort your array, making a comparison with a deallocated object.
Try running your program with NSZombieEnabled -- it prevents the deallocation so you can see which object is getting messages sent to it with a retain count of 0.
If you are using a NSFetchedResultsController then there may be an error in that code and it is not easy to see that. I would suggest putting in some log statements into your NSFetchedResultsController delegate methods and watch which one is getting fired.
Since the NSFRC is fired as part of the save routine of the NSManagedObjectContext, an error in its delegate can easily be misinterpreted as an error in the save itself.
Update 1
If its on a date then perhaps when you set that date somewhere you are overreleasing it yourself? Perhaps calling a -release on a [NSDate date]. That type of error would be hidden until Core Data tried to access the date object.