The exception that is thrown when role validation fails due to a specified identity that is not contained in the WorkflowRoleCollection.
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.