Index: Src/GoogleApis.Authentication.OAuth2.Tests/GoogleApis.Authentication.OAuth2.Tests.csproj
===================================================================
--- a/Src/GoogleApis.Authentication.OAuth2.Tests/GoogleApis.Authentication.OAuth2.Tests.csproj
+++ b/Src/GoogleApis.Authentication.OAuth2.Tests/GoogleApis.Authentication.OAuth2.Tests.csproj
@@ -38,6 +38,16 @@
     <Reference Include="DotNetOpenAuth">
       <HintPath>..\..\ThirdParty\DotNetOpenAuth.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="Newtonsoft.Json">
       <HintPath>..\..\packages\Newtonsoft.Json.5.0.5\lib\net40\Newtonsoft.Json.dll</HintPath>
     </Reference>
@@ -48,6 +58,27 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
     <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>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="DotNetOpenAuth\NativeApplicationClientTest.cs" />
@@ -85,4 +116,5 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(SolutionDir)\.nuget\nuget.targets" />
+  <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.8\tools\Microsoft.Bcl.Build.targets" />
 </Project>
\ No newline at end of file