The exception that is thrown when the optional functionality is not available in the installed Revit

Namespace: Autodesk.Revit.Exceptions
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)

Syntax

C#
`[SerializableAttribute] public class OptionalFunctionalityNotAvailableException : InvalidOperationException`

Visual Basic
`<SerializableAttribute> _ Public Class OptionalFunctionalityNotAvailableException _ Inherits InvalidOperationException`

Visual C++
`[SerializableAttribute] public ref class OptionalFunctionalityNotAvailableException : public InvalidOperationException`

Inheritance Hierarchy