Index: Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
===================================================================
--- a/Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
+++ b/Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
@@ -35,8 +35,40 @@
     <Reference Include="log4net">
       <HintPath>..\..\packages\log4net.2.0.0\lib\net40-full\log4net.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.16\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.Threading.Tasks.Extensions">
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.16\lib\net40\Microsoft.Threading.Tasks.Extensions.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.Threading.Tasks.Extensions.Desktop">
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.16\lib\net40\Microsoft.Threading.Tasks.Extensions.Desktop.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Net" />
+    <Reference Include="System.Net.Http, Version=2.1.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Net.Http.Extensions">
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.Extensions.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Net.Http.Primitives, Version=2.1.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.Primitives.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Net.Http.WebRequest, Version=2.1.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.WebRequest.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Runtime">
+      <HintPath>..\..\packages\Microsoft.Bcl.1.0.19\lib\net40\System.Runtime.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Threading.Tasks">
+      <HintPath>..\..\packages\Microsoft.Bcl.1.0.19\lib\net40\System.Threading.Tasks.dll</HintPath>
+    </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -58,6 +90,7 @@
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
+  <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.8\tools\Microsoft.Bcl.Build.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">