A while ago, I renamed my Core Data managed object subclasses, but changed them all back, so now the class names match their entity names. However, even after deleting and reinstalling, I get this message for one of my entities: "CoreData: warning: Unable to load class named 'X' for entity 'Y'. Class not found, using default NSManagedObject instead." where X is the name I put in and Y is the actual name. I can't find any mention of the old name in my project. Do I need to delete my model and start over?