Could not determine generated file paths for CoreData code generation

Question

While building my project for different target I am getting this error:

Could not determine generated file paths for Core Data code generation: Er

Answer 1

The answers given above are just right, but if these do not work, then:

1. Make a copy of your model and store it somewhere
2. Delete the model from Xcode
3. Add the model again to whatever folder you want to add it to

This solved my issue. Hope this helps.