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Trying to track down error in NSPersistentDocument when saving

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Trying to track down error in NSPersistentDocument when saving

Subject: Trying to track down error in NSPersistentDocument when saving
From: Gideon King <email@hidden>
Date: Sun, 16 Aug 2009 21:26:45 +1000

Hi, I'm hoping someone may have encountered something like this before, or have knowledge of the internals of NSPersistentStore...

I am getting an exception on NSDictionary setObject:forKey: (attempt to insert nil key), and although I am not getting any stacktrace, it appears when I step through it that the problem occurs in NSPersistentDocument writeToURL:ofType:forSaveOperation:originalContentsURL:error: I have also tried breaking on NSException raise, and that didn't help, and did a print and continue breakpoint on setObject:forKey:, but that didn't turn up anything (except for showing me that this method is called a lot!

Any suggestions as to where to look for a solution to this would be very welcome.

Thanks


Gideon
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