diff --git a/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj b/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj
index 20f1cedb872..157fa3f0ef4 100644
--- a/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj
+++ b/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj
@@ -42,6 +42,17 @@
     <Reference Include="System.Xml" />
     <Reference Include="System.Core" />
     <Reference Include="Mono.Android" />
+    <Reference Include="System.IO.Compression" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Runtime.Loader">
+      <HintPath>..\packages\System.Runtime.Loader.4.0.0\lib\netstandard1.5\System.Runtime.Loader.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Interactive.Async">
+      <HintPath>..\packages\System.Interactive.Async.3.1.1\lib\netstandard1.3\System.Interactive.Async.dll</HintPath>
+    </Reference>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.1.15.0-dev\lib\netstandard1.5\Grpc.Core.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="MainActivity.cs" />
@@ -52,6 +63,7 @@
     <None Include="Resources\AboutResources.txt" />
     <None Include="Properties\AndroidManifest.xml" />
     <None Include="Assets\AboutAssets.txt" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <AndroidResource Include="Resources\layout\Main.axml" />
@@ -64,4 +76,5 @@
   </ItemGroup>
   <Import Project="..\HelloworldXamarin\HelloworldXamarin.projitems" Label="Shared" Condition="Exists('..\HelloworldXamarin\HelloworldXamarin.projitems')" />
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
+  <Import Project="..\packages\Grpc.Core.1.15.0-dev\build\MonoAndroid\Grpc.Core.targets" Condition="Exists('..\packages\Grpc.Core.1.15.0-dev\build\MonoAndroid\Grpc.Core.targets')" />
 </Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/Droid/packages.config b/examples/csharp/HelloworldXamarin/Droid/packages.config
new file mode 100644
index 00000000000..4fee491e7e9
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/packages.config
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Grpc.Core" version="1.15.0-dev" targetFramework="monoandroid81" />
+  <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="monoandroid81" />
+  <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="NETStandard.Library" version="1.6.1" targetFramework="monoandroid81" />
+  <package id="System.AppContext" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Collections" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Console" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Globalization" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Globalization.Calendars" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Interactive.Async" version="3.1.1" targetFramework="monoandroid81" />
+  <package id="System.IO" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.IO.Compression" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.IO.Compression.ZipFile" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.IO.FileSystem" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.IO.FileSystem.Primitives" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Linq" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Net.Http" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Net.Primitives" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Net.Sockets" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.ObjectModel" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Reflection" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.Handles" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.Loader" version="4.0.0" targetFramework="monoandroid81" />
+  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Security.Cryptography.Algorithms" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Text.Encoding" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Threading" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Threading.Thread" version="4.0.0" targetFramework="monoandroid81" />
+  <package id="System.Threading.ThreadPool" version="4.0.10" targetFramework="monoandroid81" />
+  <package id="System.Threading.Timer" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Xml.ReaderWriter" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="monoandroid81" />
+</packages>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj b/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj
index 27cb1c41ab4..f968398278f 100644
--- a/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj
+++ b/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj
@@ -81,6 +81,17 @@
     <Reference Include="System.Xml" />
     <Reference Include="System.Core" />
     <Reference Include="Xamarin.iOS" />
+    <Reference Include="System.IO.Compression" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Runtime.Loader">
+      <HintPath>..\packages\System.Runtime.Loader.4.0.0\lib\netstandard1.5\System.Runtime.Loader.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Interactive.Async">
+      <HintPath>..\packages\System.Interactive.Async.3.1.1\lib\netstandard1.3\System.Interactive.Async.dll</HintPath>
+    </Reference>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.1.15.0-dev\lib\netstandard1.5\Grpc.Core.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Contents.json" />
@@ -96,6 +107,7 @@
   <ItemGroup>
     <None Include="Info.plist" />
     <None Include="Entitlements.plist" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Main.cs" />
@@ -107,4 +119,5 @@
   </ItemGroup>
   <Import Project="..\HelloworldXamarin\HelloworldXamarin.projitems" Label="Shared" Condition="Exists('..\HelloworldXamarin\HelloworldXamarin.projitems')" />
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
+  <Import Project="..\packages\Grpc.Core.1.15.0-dev\build\Xamarin.iOS\Grpc.Core.targets" Condition="Exists('..\packages\Grpc.Core.1.15.0-dev\build\Xamarin.iOS\Grpc.Core.targets')" />
 </Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/iOS/packages.config b/examples/csharp/HelloworldXamarin/iOS/packages.config
new file mode 100644
index 00000000000..ad960e401e5
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/packages.config
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Grpc.Core" version="1.15.0-dev" targetFramework="xamarinios10" />
+  <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="xamarinios10" />
+  <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="NETStandard.Library" version="1.6.1" targetFramework="xamarinios10" />
+  <package id="System.AppContext" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Collections" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Console" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Globalization" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Globalization.Calendars" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Interactive.Async" version="3.1.1" targetFramework="xamarinios10" />
+  <package id="System.IO" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.IO.Compression" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.IO.Compression.ZipFile" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.IO.FileSystem" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.IO.FileSystem.Primitives" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Linq" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Net.Http" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Net.Primitives" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Net.Sockets" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.ObjectModel" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Reflection" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.Handles" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.Loader" version="4.0.0" targetFramework="xamarinios10" />
+  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Security.Cryptography.Algorithms" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Text.Encoding" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Threading" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Threading.Thread" version="4.0.0" targetFramework="xamarinios10" />
+  <package id="System.Threading.ThreadPool" version="4.0.10" targetFramework="xamarinios10" />
+  <package id="System.Threading.Timer" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Xml.ReaderWriter" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="xamarinios10" />
+</packages>
\ No newline at end of file