Some families have become unusable. Reload the families, or delete them from the model.

public static FailureDefinitionId UnableToUpgradeDueToCorruptFamilies { get; }

Public Shared ReadOnly Property UnableToUpgradeDueToCorruptFamilies As FailureDefinitionId
	Get

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