Index: Tools/Google.Apis.NuGet.Publisher/Google.Apis.NuGet.Publisher.csproj
===================================================================
--- a/Tools/Google.Apis.NuGet.Publisher/Google.Apis.NuGet.Publisher.csproj
+++ b/Tools/Google.Apis.NuGet.Publisher/Google.Apis.NuGet.Publisher.csproj
@@ -63,10 +63,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="NuGetApiPublisher.cs" />
-    <Compile Include="DirectoryUtilities.cs" />
     <Compile Include="Discovery\DiscoveryItem.cs" />
-    <Compile Include="NuGetUtilities.cs" />
-    <Compile Include="TraceExtensions.cs" />
     <Compile Include="Discovery\DiscoveryService.cs" />
     <Compile Include="Discovery\DiscoveryDoc.cs" />
     <Compile Include="Program.cs" />
@@ -84,6 +81,12 @@
   <ItemGroup>
     <Content Include="Template\.nuget\NuGet.exe" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Google.Apis.Utils\Google.Apis.Utils.csproj">
+      <Project>{cbc99a4a-e3d0-4609-b704-7b2bf583fc30}</Project>
+      <Name>Google.Apis.Utils</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.