Share Email Facebook Twitter LinkedIn BuiltInFailures.AutoJoinFailures.Unknown Property Unknown Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public static FailureDefinitionId Unknown { get; }Property ValueFailureDefinitionId See AlsoReferenceBuiltInFailures.AutoJoinFailures ClassAutodesk.Revit.DB Namespace