iPhone core data problem : referenceData64 only defined for abstract class iPhone core data problem : referenceData64 only defined for abstract class xml xml

iPhone core data problem : referenceData64 only defined for abstract class


I had the same problem with core data and multithreading operations.Read this article for understanding of the problem.

In the working thread I began to use the functions lock, unlock for NSManagedObjectContext and crash not repeat any more.


Do you use custom NSManagedObject subclasses for your entities? This problem can occur if you do incorrect initializations etc. in initWithEntity:insertIntoManagedObjectContext: