"Family '[Name]' cannot be upgraded and must be deleted. To fix the file in the older version of Revit, try loading newer versions of these families: [Names]."

public static FailureDefinitionId FamilyCannotBeUpgraded { get; }

Public Shared ReadOnly Property FamilyCannotBeUpgraded As FailureDefinitionId
	Get

public:
static property FailureDefinitionId^ FamilyCannotBeUpgraded {
	FailureDefinitionId^ get ();
}