I've created a subclass of NSManagedObject for my entity, but after I've deleted it because I don't use it, I just have the entity specified in my xcdatamodeld file. And when I use this entity, I now get this message in my console : CoreData: warning: Unable to load class named '' for entity 'Receipt'. Class not found, using default NSManagedObject instead. !
How can I completely delete this class so that Core Data do not more research a class for my entity ?