问题
For the third time in a row, I create a blank navigation-based iOS project, create two entities in the core data model, create references from entities to one another, and the second I mark them as inverse, this happens:
UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Cannot remove an observer <IDEDMArrayController 0x27fbcc0> for the key path "inspectedInverseRelationship.name" from <CDMRelationship 0x2911060>, most likely because the value for the key "inspectedInverseRelationship" has changed without an appropriate KVO notification being sent. Check the KVO-compliance of the CDMRelationship class.
What can I do to avoid it?
来源：https://stackoverflow.com/questions/6848542/xcode-4-crash-at-marking-references-inverse