In the downloads, GrokkingRecipes_v3 folder contains the GrokkingRecipes project after the migration code has been added for version 3 of the data model. The application bundle that is built contains two copies of v2.xcdatamodel. One of them is in the Resources/DataModel.momd/ folder where it should be, but the second one is in Resources/. The latter one exists because the Target box is checked for v2.xcdatamodel.
I’m assuming that the Target box should not be checked. Can anyone confirm this?