I've got an app that worked on Leopard. I ported it to Snow Leopard SDK 10.6, 
and now it works on Snow Leopard, but it doesn't work correctly on Leopard 
anymore. I haven't changed anything that ought to affect this.

It's an app with a foreground gui that writes an XML coredata store. A 
background thread reads the repository and takes action. Both threads have the 
full core data stack with their own coordinators. As soon as I activate the 
background thread, the XML store gets set to zero bytes.

When I encountered the problem I read the doco and I added the 
NSReadOnlyPersistentStoreOption when calling addPersistentStoreWithType in the 
background thread, but that hasn't helped. It wasn't necessary before.

Has anyone got any thoughts?

And also, how am I going to debug this? Xcode 3.2 doesn't run on 10.5 does it? 
And is an Xcode 3.2 project now going to work with XCode 3.1?


      
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