core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

error

Canonical URL: http://schema.org/error

Thing > Property > error

For failed actions, more information on the cause of the failure.

Usage: Fewer than 10 domains
Values expected to be one of these types
Thing
Used on these types
Action

Schema Version 3.2