Not all parts were converted. Placeholders were added to fill the gaps. Check the fabrication service definition for the system.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public static FailureDefinitionId NotAllPartsWereConvertedPlaceholdersWereAddedWarning { get; }