Index: Src/GoogleApis.Auth.DotNet4/GoogleApis.Auth.DotNet4.csproj
===================================================================
--- a/Src/GoogleApis.Auth.DotNet4/GoogleApis.Auth.DotNet4.csproj
+++ b/Src/GoogleApis.Auth.DotNet4/GoogleApis.Auth.DotNet4.csproj
@@ -33,41 +33,49 @@
     <DocumentationFile>Google.Apis.Auth.PlatformServices.xml</DocumentationFile>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Microsoft.Threading.Tasks">
-      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.16\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>
+    <Reference Include="Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.168\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 Include="Microsoft.Threading.Tasks.Extensions, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.168\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 Include="Microsoft.Threading.Tasks.Extensions.Desktop, Version=1.0.168.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.Desktop.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.5.0.8\lib\net40\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.3\lib\net40\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.IO">
+      <HintPath>..\..\packages\Microsoft.Bcl.1.1.9\lib\net40\System.IO.dll</HintPath>
+    </Reference>
     <Reference Include="System.Net" />
-    <Reference Include="System.Net.Http, Version=2.1.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+    <Reference Include="System.Net.Http, Version=2.2.22.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.dll</HintPath>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.22\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 Include="System.Net.Http.Extensions, Version=2.2.22.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.22\lib\net40\System.Net.Http.Extensions.dll</HintPath>
     </Reference>
-    <Reference Include="System.Net.Http.Primitives">
-      <HintPath>..\..\packages\Microsoft.Net.Http.2.1.10\lib\net40\System.Net.Http.Primitives.dll</HintPath>
+    <Reference Include="System.Net.Http.Primitives, Version=2.2.22.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.22\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">
+    <Reference Include="System.Net.Http.WebRequest, Version=2.2.22.0, 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>
+      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.22\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>
+      <HintPath>..\..\packages\Microsoft.Bcl.1.1.9\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>
+      <HintPath>..\..\packages\Microsoft.Bcl.1.1.9\lib\net40\System.Threading.Tasks.dll</HintPath>
     </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -83,6 +91,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="app.config" />
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
@@ -101,10 +110,10 @@
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
-  <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" />
+  <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
   <Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
-    <Error Condition="!Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
-    <Error Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
+    <Error Condition="!Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
+    <Error Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
   </Target>
   <!-- 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.