Index: src/Plugins/Wti/Wti.Calculation/Wti.Calculation.csproj
===================================================================
diff -u -r873513e4b48ff101450b45fb81eba2332f2b24c8 -r36b6db0382640b3a02424d3249c113794f621b10
--- src/Plugins/Wti/Wti.Calculation/Wti.Calculation.csproj	(.../Wti.Calculation.csproj)	(revision 873513e4b48ff101450b45fb81eba2332f2b24c8)
+++ src/Plugins/Wti/Wti.Calculation/Wti.Calculation.csproj	(.../Wti.Calculation.csproj)	(revision 36b6db0382640b3a02424d3249c113794f621b10)
@@ -60,6 +60,10 @@
     <Service Include="{94E38DFF-614B-4cbd-B67C-F211BB35CE8B}" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\..\Wti.Base\Wti.Base.csproj">
+      <Project>{c90b77da-e421-43cc-b82e-529651bc21ac}</Project>
+      <Name>Wti.Base</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Wti.Data\Wti.Data.csproj">
       <Project>{ce994cc9-6f6a-48ac-b4be-02c30a21f4db}</Project>
       <Name>Wti.Data</Name>