Connect Xamarin Cross-Platform project to OData Service

Question

I am using Visual studio 2017 Xamarin Cross-Platform template. This should connect to an OData. So I added these NuGet Packages:

Microsoft.data.odata (v 5.8.2)
Microsoft.odata.Client (v 6.16.0)

There is no error yet. But:

According to xamarin documentations I should add Simple.OData.Client. Just after adding Simple.OData.Client (v 4.26.0) I am getting Reference to type 'Object' claims it is defined in 'System.Runtime', but it could not be found with code CS7069 in almost all types in shared project.

I did some googling and found this. I don't know where to add that.

I added System.Runtime but that didn't do anything.

Please consider the solution as not-changed-xamarin-cross-platform solution with 3 projects. SharedProject , Android and iOS

Is there a version mismatch? If so, what versions of these refrences are compatible with each other?

Thanks in advance :)