The selected fitting(s) cannot successfully change the type. The newly selected fabrication part type has a problem with the angle dimension of the current fitting(s), resulting in bad geometry. You may try to disconnect the connections on the fitting(s) and try again.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34)
Syntax
C#
public static FailureDefinitionId FabricationPartCannotChangeTypeMisalignedError { get; }