@@ -31,6 +31,5 @@
     <Reference Include="System.IO" Condition="'$(BaseFrameworkPathOverrideForMono)' != '' AND $(TargetFramework.StartsWith('net4'))" />
     <Reference Include="System.Threading.Tasks" Condition="'$(BaseFrameworkPathOverrideForMono)' != '' AND $(TargetFramework.StartsWith('net4'))" />
     <Reference Include="System.Text.Encoding" Condition="'$(BaseFrameworkPathOverrideForMono)' != '' AND $(TargetFramework.StartsWith('net4'))" />
-    <Reference Include="System.Net.Primitives" Condition="'$(BaseFrameworkPathOverrideForMono)' != '' AND $(TargetFramework.StartsWith('net4'))" />
   </ItemGroup>
 </Project>
@@ -2,12 +2,20 @@ source https://api.nuget.org/v3/index.json
 
 nuget NuGet.CommandLine
 
+# This group is needed for packages that are not needed or don't work on Mono.
+group NetCoreAndStandard
+  frameworks: netcoreapp2.0, netstandard2.0
+
+  # System.Net.Http is broken on Mono (see https://github.com/dotnet/corefx/issues/19914).
+  # Mono hijacks its calls to its own version of System.Net.Http, so we should not reference or include the assembly
+  # in mono releases.
+  nuget System.Net.Http 4.3.4
+
 group Common
   source https://api.nuget.org/v3/index.json
   frameworks: net461, netcoreapp2.0, netstandard2.0
 
   nuget System.Reactive
-  nuget System.Net.Http 4.3.4
 
   # Be explicit about FSharp.Core 4.3.4 when designing libraries.
   # See https://fsharp.github.io/2015/04/18/fsharp-core-notes.html#fsharpcore-entries-in-project-files for additional information.
 
@@ -41,5 +41,9 @@
     </None>
     <ProjectReference Include="..\FSharp.Data.GraphQL.Shared\FSharp.Data.GraphQL.Shared.fsproj" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net461'">
+    <Reference Include="System.Net.Primitives" />
+    <Reference Include="System.Net.Http" />
+  </ItemGroup>
   <Import Project="..\..\.paket\Paket.Restore.targets" />
 </Project>
@@ -1,5 +1,7 @@
 group Common
 FSharp.Core
-System.Net.Http
 File:ProvidedTypes.fsi
-File:ProvidedTypes.fs
+File:ProvidedTypes.fs
+
+group NetCoreAndStandard
+System.Net.Http
@@ -26,6 +26,10 @@
     <None Include="FSharp.Data.GraphQL.Client.fsproj.paket.template" />
     <None Include="paket.references" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net461'">
+    <Reference Include="System.Net.Primitives" />
+    <Reference Include="System.Net.Http" />
+  </ItemGroup>
   <Target Name="BeforeBuild">
     <MSBuild Projects="..\FSharp.Data.GraphQL.Client.DesignTime\FSharp.Data.GraphQL.Client.DesignTime.fsproj" Targets="Restore" />
     <MSBuild Projects="..\FSharp.Data.GraphQL.Client.DesignTime\FSharp.Data.GraphQL.Client.DesignTime.fsproj" Targets="Build" Properties="Configuration=$(Configuration);TargetFramework=netcoreapp2.0" />
 
@@ -1,3 +1,5 @@
 group Common
 FSharp.Core
+
+group NetCoreAndStandard
 System.Net.Http