On 2013-02-02, at 2:09 PM, Amy Heavey <a...@willowtreecrafts.co.uk> wrote:

> Hi,
> 
> I've got an app that I write for myself (I am the only user). I made a 
> mistake when creating the datamodel in xcode 3 (targeting 10.5), I used 
> "description" as an attribute name. I have now upgraded and the current 
> xcodes do not like the project file at all. 
> 
> I've got quite a lot of data in this app that I really don't want to loose. 
> It uses an sql store.
> 
> Somehow I need to create a new app for 10.8 that will use the old file, or 
> find a way to convert the old file to work with a new app. The new app will 
> be almost the same but only have the current datamodel.
> 
> Can I create an intermediate datamodel in xcode 3 that removes the error from 
> the file, and create an app. Open the file with this version to upgrade it to 
> the current datamodel. Then create an xcode project without the old 
> datamodels and use that?

Yes, this makes sense.

I'm not sure if you also need to run your converter app on an older version of 
the OS.

> 
> Does this make sense?
> 
> Many Thanks,
> 
> Amy
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