I am seeing the same thing except I have noticed that for some reason the "test" command works fine despite "build" giving me this error. Were you eventually able to solve this?

If anyone else runs into this, what I ended up doing was destroying the store on appearance of the "Login" page the user is taken to upon logging out. I didn't do anything special to make sure it only happens in that specific scenario since there is nothing I store in CoreData while the user is logged out, so it is always safe to call that if the user is logged out.