I keep getting this error when trying to migrate a sql store:

-[Document 
configurePersistentStoreCoordinatorForURL:ofType:modelConfiguration:storeOptions:error:]
 Error NSCocoaErrorDomain 134110 {
    NSUnderlyingException = "I/O error for database at 
/Users/mlink/Desktop/Untitled.db.new.  SQLite error code:1, 'no such table: 
_T_ZEVENT'";
    destinationURL = "file://localhost/Users/mlink/Desktop/Untitled.db.new";
    reason = "Cannot migrate store in-place";
    sourceURL = "file://localhost/Users/mlink/Desktop/Untitled.db";
}

This migration is using the default mapping model created in Xcode. The Event 
entity was changed to have an abstract parent entity, before it stood alone.

I tried creating an entity migration policy subclass but none of its methods 
are called. Anyone have any ideas what the problem might be?

--
Michael_______________________________________________

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