Why are my NSManagedObject subclass methods not being recognized?

When something like this happens to me, there's two things I try. The first thing I do is make sure I properly #imported the NSManagedObject subclass (I forget that way more often than I should), but as you said you copied and pasted, I don't think that is your problem. The second thing I try is to rebuild the NSManagedObjects by going to File>New>File then NSManagedObject Subclass then selecting the NSManagedObjects that I changed something in.

I would recommend rebuilding all of them in your case. See if that works. It may not, but it's an easy place to start.

Make sure you check your model and ensure that you've change the class names in the inspector. Otherwise, they'll return as NSManagedObjects no matter what. And use mogenerator so you don't have to worry about regenerating your classes.

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