Hi, I can successfully use a gRPC service (.NET Core 3.1) from my .NET Core 3.1 client. Now I want to use a gRPC .NET Framework 4.8 client to use the gRPC service (.NET Core 3.1). Here (supported-platforms I found the following information: gRPC on .NET supports .NET Core 3 and .NET 5 or later. .NET 5 or later .NET Core 3 gRPC on .NET doesn't support running on .NET Framework and Xamarin. gRPC C# core-library is a third party library that supports .NET Framework and Xamarin. gRPC C-core is not supported by Microsoft. I try to run use the gRPC C# core-library, but still have a problem to invoke the gRPC service.