diff --git a/SAM_Revit_UI/SAM.Analytical.Revit.UI/IExternalCommands/Simulate.cs b/SAM_Revit_UI/SAM.Analytical.Revit.UI/IExternalCommands/Simulate.cs
index 8543ee6..b7f2cc9 100644
--- a/SAM_Revit_UI/SAM.Analytical.Revit.UI/IExternalCommands/Simulate.cs
+++ b/SAM_Revit_UI/SAM.Analytical.Revit.UI/IExternalCommands/Simulate.cs
@@ -227,7 +227,7 @@ public override Result Execute(ExternalCommandData commandData, ref string messa
                 SimulateTo = 1
             };
 
-            analyticalModel = Analytical.UI.WPF.Modify.RunWorkflow(analyticalModel, workflowSettings);
+            analyticalModel = Tas.Modify.RunWorkflow(analyticalModel, workflowSettings);
 
             List<Core.ISAMObject> results = null;
 
diff --git a/SAM_Revit_UI/SAM.Analytical.Revit.UI/SAM.Analytical.Revit.UI.csproj b/SAM_Revit_UI/SAM.Analytical.Revit.UI/SAM.Analytical.Revit.UI.csproj
index 353b5f0..bce0670 100644
--- a/SAM_Revit_UI/SAM.Analytical.Revit.UI/SAM.Analytical.Revit.UI.csproj
+++ b/SAM_Revit_UI/SAM.Analytical.Revit.UI/SAM.Analytical.Revit.UI.csproj
@@ -92,9 +92,6 @@
         <Reference Include="SAM.Analytical.UI">
             <HintPath>..\..\..\SAM_UI\build\SAM.Analytical.UI.dll</HintPath>
         </Reference>
-        <Reference Include="SAM.Analytical.UI.WPF">
-          <HintPath>..\..\..\SAM_UI\build\SAM.Analytical.UI.WPF.dll</HintPath>
-        </Reference>
         <Reference Include="SAM.Analytical.Windows">
             <HintPath>..\..\..\SAM_Windows\build\SAM.Analytical.Windows.dll</HintPath>
         </Reference>