Fixed reference issue

Author: jfreilly

samples/cs/tar/Tar.csproj

@@ -32,7 +32,6 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Data" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Xml" />
     <Reference Include="System.Xml.Linq" />
@@ -41,6 +40,12 @@
     <Compile Include="AssemblyInfo.cs" />
     <Compile Include="Main.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\src\ICSharpCode.SharpZLib.csproj">
+      <Project>{0E7413FF-EB9E-4714-ACF2-BE3A6A7B2FFD}</Project>
+      <Name>ICSharpCode.SharpZLib</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSHARP.Targets" />
   <ProjectExtensions>
     <VisualStudio AllowExistingFolder="true" />