Error on using package in .Net Framework 4.6.2 project

[SandeepBiz]

Documentation mentions mx-platform-csharp supports .Net Framework 4.6 but when I am try to add package in .Net Framework 4.6.2 web forms project, I am getting following error.

could not install package 'MX.Platform.CSharp 0.20.0'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.6.2', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

If I download code, build project and then add dll to .Net Framework 4.6 web forms project then I get following error.