Rainer hello. Have you created once again the ManagedObjects from the model?.. If so and you didn't remove the old ones, Xcode will start complaining A LOT (don't ask me why but it happened to me when I did it), then I realize I had to delete the old MO .m and .h files and generate again form the new model version. Now if you have custom methods in your MO's then what I do is that I don't delete, or create a new one, but simply add by had the new(s) attributes I set in the new model version. Im pretty sure there i another way to do this, better one, but this is what I do. But generally before creating the MO's Im make sure the model its normalized as much as I can, and in a consistent representation.
Now other thing to check is if you set the new model version as the current one. Also, I think when changing things in the model you have to create a modelmapping file, this is done after making the changes in the new model version, new file> resources, mappingmodel, call it whatever, then select the sources and the destination models, .. I hope this helps. Im not expert tough, but if this helps you Im glad. Gustavo On 21.5.2010, at 1:25, Rainer Standke wrote: > Hello, > > when I select my data model in the xcode project, and then select Design/Data > Model/Add Model Version I do get a new bundle in Xcode project, but now copy > of the existing datamodel. The bundle, both in Xcode and on the Finder level, > is empty. The app does not compile any more. > > The only thing that might be unusual in this project - as far as I can tell - > is that I have iVars in the ManagedObject classes that calculate some things > on the fly, based on regular attributes. Could this be a reason for trouble? > > I have no idea why this is going wrong, and would appreciate some help, > greatly. > > Thanks, > > Rainer_______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/gustavxcodepicora%40gmail.com > > This email sent to gustavxcodepic...@gmail.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
