crash using PDFDocumentTitleAttribute - CoreData conflict?
crash using PDFDocumentTitleAttribute - CoreData conflict?
- Subject: crash using PDFDocumentTitleAttribute - CoreData conflict?
- From: "John R. Timmer" <email@hidden>
- Date: Sun, 04 Jun 2006 13:35:23 -0400
I'm having a crash on launch when i include the following code in an
NSManagedObject subclass, where theDoc is a PDFDocument:
if ( [[theDoc documentAttributes] objectForKey:
PDFDocumentTitleAttribute] != nil )
[self setName: [[theDoc documentAttributes] objectForKey:
PDFDocumentTitleAttribute]];
The crash comes with the message:
ZeroLink: unknown symbol '_PDFDocumentTitleAttribute'
testApp has exited due to signal 6 (SIGABRT).
Any suggestions on how to fix this? Is the key actually meant to be
a string?
The weird thing is that this happens without executing any code,
apparently as part of the caching that goes on when setting up a core
data app:
#2 0x96aa81c0 in undefinedHandler
#3 0x8fe1004c in
__dyld__ZN16ImageLoaderMachO16resolveUndefinedERKN11ImageLoader11LinkCon
textEPK11macho_nlistbPPS0_
#4 0x8fe10acc in
__dyld__ZN16ImageLoaderMachO28doBindIndirectSymbolPointersERKN11ImageLoa
der11LinkContextENS0_15BindingLazinessEb
#5 0x8fe0ad90 in
__dyld__ZN11ImageLoader13recursiveBindERKNS_11LinkContextENS_15BindingLa
zinessE
#6 0x8fe0db30 in
__dyld__ZN11ImageLoader4linkERKNS_11LinkContextENS_15BindingLazinessENS_
18InitializerRunningEj
#7 0x8fe03fd0 in
__dyld__ZN4dyld4linkEP11ImageLoaderNS0_15BindingLazinessENS0_18Initializ
erRunningE
#8 0x8fe090c8 in __dyld_NSLinkModule
#9 0x9002d26c in NSLinkModule
#10 0x96aa7e64 in findSymbolAnywhere
#11 0x96aa8694 in undefinedClassHandler
#12 0x90a458c8 in look_up_class
#13 0x92959bb8 in NSClassFromString
#14 0x940dc8fc in -[NSEntityDescription(_NSInternalMethods)
_entityClass]
#15 0x940dc3d4 in -[NSEntityDescription(_NSInternalMethods)
_createCachesAndOptimizeState]
#16 0x940da22c in -[NSManagedObjectModel(_NSInternalMethods)
_createCachesAndOptimizeState]
#17 0x940d9eb4 in -[NSPersistentStoreCoordinator
initWithManagedObjectModel:]
#18 0x0002cf00 in -[PDFbase_AppDelegate persistentStoreCoordinator]
at PDFbase_AppDelegate.m:80
#19 0x0002d050 in -[PDFbase_AppDelegate managedObjectContext] at
PDFbase_AppDelegate.m:100
#20 0x929d325c in _NSGetUsingKeyValueGetter
#21 0x92985e60 in -[NSObject(NSKeyValueCoding) valueForKeyPath:]
#22 0x9394a2a4 in -[NSBinder
_valueForKeyPath:ofObject:mode:raisesForNotApplicableKeys:]
#23 0x93949f40 in -[NSBinder
valueForBinding:resolveMarkersToPlaceholders:]
#24 0x93be4a28 in -[NSObjectParameterBinder
_updateObject:observedController:observedKeyPath:context:]
#25 0x93941e1c in -[NSObject(NSKeyValueBindingCreation)
bind:toObject:withKeyPath:options:]
#26 0x93739d88 in -[NSIBObjectData
nibInstantiateWithOwner:topLevelObjects:]
#27 0x9372603c in loadNib
#28 0x93725a94 in +[NSBundle(NSNibLoading)
_loadNibFile:nameTable:withZone:ownerBundle:]
#29 0x9377cf64 in +[NSBundle(NSNibLoading)
loadNibFile:externalNameTable:withZone:]
#30 0x9380cdf0 in +[NSBundle(NSNibLoading) loadNibNamed:owner:]
#31 0x9380cb90 in NSApplicationMain
#32 0x0000dfac in main at main.m:13
____________________________________
Science writer, Ars Technica (among other things)
http://arstechnica.com/journals/science.ars
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