NSMergeConflict on iOS7

Question

I have updated my app to support iOS 7 and have been faced with the problem that on one of screens in my [context save]; I get the following error:

Answer 1

Using Xcode 6.3.2 with Apple Watchkit extension and I got this same error when trying to make multiple updates and saves. The setMergePolicy solved the problem and here are the swift code:

context.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy

Make sure to put the above line before the context.save command.