IGrpcServiceActivator missing DynamicallyAccessedMembers attribute on its generic argument type

[gitfool]

What version of gRPC and what language are you using?

gRPC 2.37.0 and C#

What operating system (Linux, Windows,...) and version?

Linux (Ubuntu 20.04) and Windows (10 21H1)

What runtime / compiler are you using (e.g. .NET Core SDK version dotnet --info)

.NET SDK 6.0.100-rc.2.21505.57

What did you do?

See pulumi/pulumi#8153 (comment) for background.

TL;DR: Simply retargeting from net5.0 to net6.0 hit an issue with linker trimming of single file executable:

Generic implementation type 'Grpc.AspNetCore.Server.Internal.DefaultGrpcServiceActivator`1' has a DynamicallyAccessedMembers attribute applied to a generic argument type, but the service type
'Grpc.AspNetCore.Server.IGrpcServiceActivator`1' doesn't have a matching DynamicallyAccessedMembers attribute on its generic argument type.

If I understand correctly, it looks like this is not fixed in the latest source as IGrpcServiceActivator still does not have the DynamicallyAccessedMembers attribute as in DefaultGrpcServiceActivator.

[JamesNK]

Thanks for reporting this. It is fixed in the next gRPC release. A preview should be released soon.