SciChart into Xamarin Cross platform

Hi

I’m trying to use SciChart in my Xamarin Visual Studio Cross platform application. After installing the SciChart package in the Package Manager console I got the dependency reference error:

Package SciChart 5.1.0.11405 was restored using '.NETFramework, Version=v4.6.1' instead of the project target framework 'NETStandard,Version=v2.0'. This papckage may not be fully compatible with your project .

I know that .NET framework 4.6.1 is different from .NETStandard2.0.

I’ve read some articles about how to target multiple .NET versions in the same application by modifying the .csproj file, but I can’t get it work anyway.
https://medium.com/@SicknoteSteve/nuget-targeting-both-net-standard-and-the-net-framework-326a16266ca4
I’ve modified the csproj file like this

<PropertyGroup>
  <TargetFrameworks>netstandard2.0;net461</TargetFrameworks>
</PropertyGroup>

<ItemGroup Condition="'$(TargetFramework)'=='netstandard2.0'">
  <PackageReference Include="Xamarin.Forms" Version="2.5.0.280555" />
</ItemGroup>

<ItemGroup Condition="'$(TargetFramework)' == 'net461'">
  <PackageReference Include="SciChart" Version="5.1.0.11405" />
  <PackageReference Include="Xamarin.Forms" Version="2.5.0.280555" />
</ItemGroup>

This action removes all dependency errors, but I still can’t use the libraries.

Does anyone know how to solve this issue?

Thanks in advance!