Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj
===================================================================
diff -u -r6928d01beb183acca2937ed5835e951e999be5cb -r59fcd17973dee55b14a079325767f28e8cb535c2
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 6928d01beb183acca2937ed5835e951e999be5cb)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 59fcd17973dee55b14a079325767f28e8cb535c2)
@@ -66,10 +66,8 @@
       <DependentUpon>Resources.resx</DependentUpon>
     </Compile>
     <Compile Include="Readers\PipingConfigurationReader.cs" />
-    <Compile Include="Readers\IReadPipingCalculationItem.cs" />
     <Compile Include="Schema\PipingConfigurationSchemaIdentifiers.cs" />
     <Compile Include="Readers\ReadPipingCalculation.cs" />
-    <Compile Include="Readers\ReadPipingCalculationGroup.cs" />
     <Compile Include="SoilProfile\LayerProperties.cs" />
     <Compile Include="SoilProfile\Schema\MechanismPointLocationTableColumns.cs" />
     <Compile Include="SoilProfile\Schema\MechanismTableColumns.cs" />