CloudNotes not syncing because there is still a reference to UnCloudNotes

In Core Data by Tutorials Chapter 7, when I first run CloudNotes on the simulator and on a device, CloudNotes is not syncing like it should.

I received a warning message in the debug console:

CoreData: warning: no NSValueTransformer with class name ‘UnCloudNotes.ImageTransformer’ was found for attribute ‘image’ on entity ‘ImageAttachment’

It looks like one of the references to UnCloudNotes was not changed to refer to CloudNotes. Where do I check for this? Anyone have a fix for this?