Re: Saving NSDictionary, Enumeration error
Re: Saving NSDictionary, Enumeration error
- Subject: Re: Saving NSDictionary, Enumeration error
- From: Igor Elland <email@hidden>
- Date: Tue, 07 May 2013 15:45:16 +0200
Cab you provide a bit more detail? Is everything happening on to main thread?
On May 7, 2013, at 14:39, Tamas Nagy <email@hidden> wrote:
> Hi,
>
> one of my users recently got an error when trying to save. My application is not document based, and I'm collecting the data to NSDictionaries, then save it with writeToFile: method. I never can reproduce the issue, so hard to find what is the problem.
>
> I'm collection the data with methods like:
>
> NSMutableDictionary *tempdict = [[[NSMutableDictionary alloc] init] autorelease];
>
> [tempdict setObject:... forKey:...];
> [tempdict setObject:... forKey:...];
> [tempdict setObject:... forKey:...];
> .
> .
> .
> return [NSDictionary dictionaryWithDictionary:tempdict];
>
> and putting those NSDictionaries to realSaveDict, then save:
> [realSaveDict writeToFile:[sPanel filename] atomically:YES]
>
> Any ideas guys what's going wrong?
>
> Thanks,
>
> Tamas
>
> May 3, 2013 2:44:54 PM: *** Collection <__NSDictionaryM: 0x1c37a300> was mutated while being enumerated.
> May 3, 2013 2:44:54 PM: (
> 0 CoreFoundation 0x98912e9b __raiseError + 219
> 1 libobjc.A.dylib 0x970b352e objc_exception_throw + 230
> 2 CoreFoundation 0x98912a9a __NSFastEnumerationMutationHandler + 282
> 3 CoreFoundation 0x9884afc9 -[__NSFastEnumerationEnumerator nextObject] + 457
> 4 CoreFoundation 0x98884f4c -[NSDictionary countByEnumeratingWithState:objects:count:] + 396
> 5 CoreFoundation 0x98884c68 -[NSDictionary __apply:context:] + 104
> 6 CoreFoundation 0x9880904a CFDictionaryApplyFunction + 106
> 7 CoreFoundation 0x98809dbe __CFPropertyListIsValidAux + 366
> 8 CoreFoundation 0x9882aac1 __CFPropertyListIsDictPlistAux + 257
> 9 CoreFoundation 0x98884cd5 -[NSDictionary __apply:context:] + 213
> 10 CoreFoundation 0x9880904a CFDictionaryApplyFunction + 106
> 11 CoreFoundation 0x98809dbe __CFPropertyListIsValidAux + 366
> 12 CoreFoundation 0x9882aac1 __CFPropertyListIsDictPlistAux + 257
> 13 CoreFoundation 0x98884cd5 -[NSDictionary __apply:context:] + 213
> 14 CoreFoundation 0x9880904a CFDictionaryApplyFunction + 106
> 15 CoreFoundation 0x98809dbe __CFPropertyListIsValidAux + 366
> 16 CoreFoundation 0x9882aac1 __CFPropertyListIsDictPlistAux + 257
> 17 CoreFoundation 0x98884cd5 -[NSDictionary __apply:context:] + 213
> 18 CoreFoundation 0x9880904a CFDictionaryApplyFunction + 106
> 19 CoreFoundation 0x98809dbe __CFPropertyListIsValidAux + 366
> 20 CoreFoundation 0x9882aac1 __CFPropertyListIsDictPlistAux + 257
> 21 CoreFoundation 0x98884cd5 -[NSDictionary __apply:context:] + 213
> 22 CoreFoundation 0x9880904a CFDictionaryApplyFunction + 106
> 23 CoreFoundation 0x98809dbe __CFPropertyListIsValidAux + 366
> 24 CoreFoundation 0x9883c445 CFPropertyListIsValid + 117
> 25 CoreFoundation 0x9883c2dd _CFPropertyListCreateXMLData + 77
> 26 CoreFoundation 0x9883c280 CFPropertyListCreateXMLData + 32
> 27 Foundation 0x98ca14ae -[NSDictionary(NSDictionary) writeToURL:atomically:] + 242
>
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