fix reference in sample lib project

Author: smoothdeveloper

src/SqlClient.TestProjects/Lib/Lib.fsproj

@@ -19,9 +19,12 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="netstandard" />
-    <Reference Include="FSharp.Data.SqlClient">
+    <Reference Condition="'$(TargetFramework)' == 'netcoreapp2.0'" Include="FSharp.Data.SqlClient">
       <HintPath>..\..\..\bin\netstandard2.0\FSharp.Data.SqlClient.dll</HintPath>
     </Reference>
+    <Reference Condition="'$(TargetFramework)' == 'net471'" Include="FSharp.Data.SqlClient">
+      <HintPath>..\..\..\bin\net40\FSharp.Data.SqlClient.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <Import Project="..\..\..\.paket\Paket.Restore.targets" />
 </Project>