could not locate an NSManagedObjectModel for entity name

Question

This is the code for toggleAddProject method, the Core Data code is almost the same as found in Apple\'s CoreDataBooks sample, however when I click the add button the app cr

Answer 1

During my development, I could not find Entities that I added later on. What worked for me: (Basically a sanity-tip)

Uninstall the App EVERY TIME you change the Data Model!

The Data Model is cached by Core Data between installs, to make sure the integrity stays in tact. Delete the App from the simulator / iPhone to be able to test your changes.

PS: does anyone know how to do that automatically?