Error 21086

Message

Possible error messages:

Without Resource Bundle (default)	Entity does not have any key attribute.
With Resource Bundle	Entity does not have any key attribute.

Domain	Persistence.PersistenceException
Number	21086
Label	ENTITY_NO_KEY_ATTRIBUTE
Applicable Platform(s)	iOS, Android, BlackBerry, Windows Mobile

N/A (Reserved for future use)

N/A