Latest 5.0.2 gives .net standard 2.1 not compatable with NETFrameworks & Mono.Linker.MarkException using 4.1.4

Issue below occuring in Release mode on android when building project:

Upgrading to latest on this library is causing issues with my UITest project which uses NETFramework 4.6.1 .

netstandard 2.1 is not compatable with any .NETFramework: https://docs.microsoft.com/en-us/dotnet/standard/net-standard

Error is below failing my build:

 sampleApp targets 'netstandard2.1'. It cannot be referenced by a project that targets '.NETFramework,Version=v4.6.1'

Im guessing latest version on this plugin prevents referencing projects with NETFramework

I tried a work around by dropping down to version 4.1.4 but I issues (see below) which I think is the linker stripping out some classes maybe? I dont want to set linking to none but if this is a linker issue any ideas how to fix this? Again guessing I need a line to the proguard.cfg to keep some classes?

Mono.Linker.MarkException: Error processing method: 'System.Void SampleApp.Droid.Resource::UpdateIdValues()' in assembly: 'SampleApp.Android.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve System.Int32 Plugin.LocalNotification.Resource/Attribute::coordinatorLayoutStyle

Full exception:

Severity	Code	Description	Project	File	Line	Suppression State
Error		Mono.Linker.MarkException: Error processing method: 'System.Void SampleApp.Droid.Resource::UpdateIdValues()' in assembly: 'SampleApp.Android.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve System.Int32 Plugin.LocalNotification.Resource/Attribute::coordinatorLayoutStyle
   at Mono.Linker.Steps.MarkStep.HandleUnresolvedField(FieldReference reference)
   at Mono.Linker.Steps.MarkStep.MarkField(FieldReference reference)
   at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)
   at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
   at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   --- End of inner exception stack trace ---
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
   at Mono.Linker.Steps.MarkStep.Process()
   at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
   at MonoDroid.Tuner.MonoDroidMarkStep.Process(LinkContext context)
   at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
   at Mono.Linker.Pipeline.Process(LinkContext context)
   at MonoDroid.Tuner.Linker.Process(LinkerOptions options, ILogger logger, LinkContext& context)
   at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
   at Xamarin.Android.Tasks.LinkAssemblies.RunTask()
   at Xamarin.Android.Tasks.AndroidTask.Execute()	SampleApp.Android	C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets	1942	

[LeoJHarris]

Ill send a sample project as i am unable to get the build working unfortunately. Ill try get something this week.

[thudugala]

I think Android 10 is only a issue for UITest.