CoreData supports 3 type of migration
- LightWeight Migrations
- Staged Migrations
- Manual Migrations
Case 1. Manual Migration
When you faced this issue, You need to check next version of the xcdatamodel.
Case 2. LightWeight Migration
Most common crash issues are caused by mismatching options in a properties. For example you have a Binary Data type field with external storage. And when your next xcdatamodel doesn’t matching with external storage options, it causes crash issues
Lastly I recommend adding Arguments to investigate issues
- -com.apple.CoreData.SQLDebug
- -com.apple.CoreData.ConcurrencyDebug
- -com.apple.CoreData.MigrationDebug
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