helloworld example report unimplemented error

[davidli2010]

Bug Report

Version

cargo tree | grep tonic     
hello-tonic v0.1.0 (/home/david/rust/hello-tonic)
└── tonic v0.5.0
└── tonic-build v0.5.1

Platform

Linux david-VirtualBox 5.8.0-59-generic #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Description

I copied helloworld example from tonic, the project is here: https://github.com/davidli2010/hello-tonic.

When I start server and run client, the client report an error:

 cargo run --bin hello-server
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `target/debug/hello-server`
GreeterServer listening on 127.0.0.1:5000

cargo run --bin hello-client
   Compiling hello-tonic v0.1.0 (/home/david/rust/hello-tonic)
    Finished dev [unoptimized + debuginfo] target(s) in 2.02s
     Running `target/debug/hello-client`
Error: Status { code: Unimplemented, metadata: MetadataMap { headers: {"date": "Thu, 15 Jul 2021 02:51:19 GMT", "content-type": "application/grpc"} }, source: None }

[davidli2010]

Sorry, it's my fault. I have solved the problem.

I disabled tonic-build's default feature transport, and implemented NamedService for GreeterServer by myself. Because I didn't understand what NamedService was doing, I gave a wrong Name.

To fix this problem, change the Name to "hello.Greeter", or just enable default feature of tonic-build.