“Core Data could not fulfill a fault” for objects that were not deleted

3 down vote accepted

It is possible that an object that was not "properly" saved to cause this behaviour. One way to do that is: Insert an object in a child context obtain a permanent ID for that object save to the parent context obtain the object in the parent context refresh the object in the parent context access the object in the parent context (fulfil a fault for that object) Edit: Another way to reach this state in a single context architecture is: Insert an object obtain a permanent id for the object refresh the object try and access the object (trigger a fault on the object) the refresh might be a result of a fetched results controller paging through the data and not necessarily something "visible" in your application. In addition, there is a CoreData "bug" that not always allows you to catch this exception in a parent-child context architecture, but you can try ... However, if this is the scenario you encounter, this is not a desired behaviour for your application. you are loosing the new data added to the store.

http://stackoverflow.com/questions/19994482/core-data-could-not-fulfill-a-fault-for-objects-that-were-not-deleted