Re: Possible CoreData Bug and NSPersistentStoreSaveError Problem
Re: Possible CoreData Bug and NSPersistentStoreSaveError Problem
- Subject: Re: Possible CoreData Bug and NSPersistentStoreSaveError Problem
- From: mmalcolm crawford <email@hidden>
- Date: Fri, 26 Aug 2005 10:49:10 -0700
On Aug 26, 2005, at 10:34 AM, David Garcea wrote:
I am encountering a problem opening a CoreData based document in my
application. The document saves without any errors, but when I try
to open it, this message is logged to the console:
[NSArrayController presentError:]: selector not recognized [self =
0x44119f0]
2005-08-26 13:10:04.362 Seagull 3[6515] *** NSRunLoop ignoring
exception '*** -[NSArrayController presentError:]: selector not
recognized [self = 0x44119f0]' that raised during posting of
delayed perform with target 4e0ac00 and selector 'invokeWithTarget:'
NSArrayController does not respond to presentError:, so I think
this is a bug in CoreData.
It's not entirely clear how you reach this conclusion.
In order to determine what the error was, I subclassed
NSArrayController and implemented presentError:. This is the error
that it is receiving:
NSError "An error occurred while saving." Domain=NSCocoaErrorDomain
Code=134030 UserInfo={
NSLocalizedDescription = "An error occurred while saving.";
NSUnderlyingError = NSError "An error occurred while saving."
Domain=NSCocoaErrorDomain Code=134030 UserInfo=
{NSUnderlyingException = no such column: DESC; };
NSUnderlyingException = no such column: DESC;
}
Can anyone tell me why my application is notified of a save error
while opening the file, instead of while saving the file? And more
importantly, what should I check in order to resolve the "no such
column" error?
The error appears to be describing a problem in saving, not in
loading...
It's not possible to give much more guidance without more information:
What entities do you have? Are you using a standard persistent
document, or have you reconfigured it at all? Do any of your
entities have an attribute called "desc"? ...
mmalc
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