Add support for multiple frameworks at same time

[joaommvsoares]

Hello,
Can you please add support to mutiple targets at sime time?
In my project:
<TargetFrameworks>net48;netstandard2.0</TargetFrameworks>
Building by script: VS2019 MSBuild.exe OK!
Building in VS2019 editor:
Severity Code Description Project File Line Suppression State
Error MSB4018 The "StrongNamer.AddStrongName" task failed unexpectedly.
System.MissingMethodException: Method not found: 'Void Mono.Cecil.WriterParameters.set_StrongNameKeyBlob(Byte[])'.
at StrongNamer.AddStrongName.ProcessAssembly(ITaskItem assemblyItem, Byte[] keyBytes, StrongNamerAssemblyResolver resolver)
at StrongNamer.AddStrongName.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.d__26.MoveNext() ClassLibrary4 C:\Users\joao.soares.nuget\packages\strongnamer\0.2.5\build\StrongNamer.targets 30

Thanks
JMS