CoreData: “Dangling reference to an invalid object.” error

Question

I\'m working on a Cocoa-Touch app, it uses CoreData and has some NSPersistentObject subclasses generated by the XCode model editor.

I\'ve noticed that recently, when

Answer 1

This question was asked a while back, but I just ran into it. It was not due in my case to a improperly set relationship technically. It was due to the object being set created in a different context, note not on a different thread just a different context on the same thread.

So look for threading issues if you are doing anything with thread with Core Data.