Can't copy between Family and Project.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static FailureDefinitionId CannotCopyBetweenFamilyAndProjectCorruption { get; }
BuiltInFailures.CopyPasteFailures.CannotCopyBetweenFamilyAndProjectCorruption Property
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)