Question

I am currently playing with CoreData and have a problem with the CoreDataBooks Example from Apple.

Basically I just wanted to extend the data model. I updated the model class aswell and no compiler error, butr a crash when I want to start the example.

Unresolved error Error Domain=NSCocoaErrorDomain Code=134130 UserInfo=0x1316ce0 “Operation could not be completed. (Cocoa error 134130.)”, {
URL = file://localhost/…/CoreDataBooks.sqlite;
…some nonsense info …
reason = “Can’t find model for source store”;
}

Do I need to updat the sqlite database ?

Thanks

Answer 1

Anyway, I needed to version the datamodel before changing anything that would ensure that the model does migrate automatically.