$ cd examples/netcoreapp3/HelloWorld-simple
$ dotnet run
Unhandled exception. Amqp.AmqpException: The protocol requested by peer '3 1 0 0' does not match expected '0 1 0 0'. Make sure both sides agree on protocol id and version.
   at Amqp.SenderLink.SendSync(Message message, Int32 waitMilliseconds)
   at Amqp.SenderLink.Send(Message message)
   at HelloWorld_simple.HelloWorld_simple.Main(String[] args) in C:\amq-clients-2.11.0-dotnet-core\examples\netcoreapp3\HelloWorld-simple\HelloWorld-simple.cs:line 52