Core Data Migration Error - but no changes to my model

Core Data Migration Error - but no changes to my model

References

Reference NO 1

http://iphonedevelopment.blogspot.com/2009/09/core-data-migration-problems.html

Reference NO 2

http://stackoverflow.com/questions/380076/manual-core-data-schema-migration-without-document-changed-warning

Reference NO 3

http://stackoverflow.com/questions/10374027/changing-coredata-model-retro-compatibility

Reference NO 4

http://stackoverflow.com/questions/15094213/no-suitable-mapping-model-found-for-core-data-migration

Reference NO 5

http://stackoverflow.com/questions/13315298/core-data-migration-changing-attribute-type

Reference NO 6

http://9elements.com/io/index.php/customizing-core-data-migrations/

Reference NO 7

#EANF#

Reference NO 8

#EANF#