Does not support PCL profiles (78/259)

[pvaibhav]

Description

I tried to add the NuGet package to my project which was using PCL profile 78, which did not work. I tried to update my project's profile to 259 and tried again. It still did not work.

Repro steps

Please provide the steps required to reproduce the problem

1. Create PCL project in Visual Studio Mac, targeting profile 78 or 259.

2. Try to add the FSharp.Control.Reactive Nuget package to the project.

Expected behavior

The package is successfully added to the project.

Actual behavior

Received error message in Package Console:

Could not install package 'FSharp.Control.Reactive 3.5.0'. You are trying to install this package into a project that targets '.NETPortable,Version=v4.5,Profile=Profile259', 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.

Known workarounds

• Copy the one source file directly into your project.
• Skip PCL madness and move your project to .NET Standard

Related information

• Operating system: macOS Sierra
• Branch: ?
• .NET Runtime, CoreCLR or Mono Version: Whatever comes with Visual Studio Mac. Working with Xamarin.Mac/.iOS currently.
• Performance information, links to performance testing scripts

[pvaibhav]

I found that using .NET Standard is a better solution than using PCLs. The library installs fine when using .NET Standard 2.0 (have not tested lower versions).