Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/Deltares.DamEngine.Calculators.csproj
===================================================================
diff -u -r3668 -r3690
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/Deltares.DamEngine.Calculators.csproj	(.../Deltares.DamEngine.Calculators.csproj)	(revision 3668)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/Deltares.DamEngine.Calculators.csproj	(.../Deltares.DamEngine.Calculators.csproj)	(revision 3690)
@@ -180,10 +180,8 @@
       <Name>Deltares.DamEngine.Data</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup />
   <ItemGroup>
-    <Folder Include="Interfaces\" />
-  </ItemGroup>
-  <ItemGroup>
     <None Include="..\Copying.AGPL.licenseheader">
       <Link>Copying.AGPL.licenseheader</Link>
     </None>