Core Data Migration - Can't find mapping model for migration

Question

I followed the guide found here: http://www.timisted.net/blog/archive/core-data-migration/ but keep getting \"Can\'t find mapping model for migration\" when I start up the a

Answer 1

you need to create a new version of the schema, as opposed to changing the current version. presuming you have done this, what changes have been made to the model? some changes are too drastic to be inferred reliably.