Core Data Error Message: binding not implemented for this SQLType 7

Question

The below exception is thrown on the iPhone simulator when attempting to save a Core Data SQLite store after deleting existing records using [managedObjectContext deleteObject:object];

NSInternalInconsistencyException, reason: binding not implemented for this SQLType 7

The entity for the records being deleted consists of just strings, ints, bools, and doubles. This is only an intermittent problem.

What does this error mean?

Answer 1

Looks like you are missing a quote (') -- the error is showing 7'

Answer 2

This error was caused by an incorrect mapping model from one core data model to the next, and would only happen when values were changed in the incorrectly mapped table/column of the model.