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core data "could not merge changes"
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core data "could not merge changes"


  • Subject: core data "could not merge changes"
  • From: Chris Idou <email@hidden>
  • Date: Fri, 25 Jun 2010 00:21:29 -0700 (PDT)


I've done a lot of core data development, but all using the XML file format.

Now I'm trying to work with sqlite. I've got an app that was working, but when I change to sqllite I get errors. I've got a really basic application, nothing particularly special about it as far as I see, and when I change something and hit save, I get the sheet "The document "blah etc" could not be saved. Could not merge changes.".

The documentation talks about this happening with multiple managed object contexts, but I only have one, the default one created by the guts of core data document based infrastructure.

I know NSManagedObjectContext has some methods to do with conflict resolving, but I'm reluctant to go to those until I understand what is going on and if I'm doing something wrong. Has anyone got any advice?



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