The two assemblies being compared have different naming categories

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since:  2012

Syntax

C#
public class AssemblyDifferenceNamingCategory : AssemblyDifference
Visual Basic
Public Class AssemblyDifferenceNamingCategory _
	Inherits AssemblyDifference
Visual C++
public ref class AssemblyDifferenceNamingCategory : public AssemblyDifference

Inheritance Hierarchy

System..::..Object
  Autodesk.Revit.DB..::..AssemblyDifference
    Autodesk.Revit.DB..::..AssemblyDifferenceNamingCategory

See Also