error: undefined reference to `grpc::ServerBuilder::AddListeningPort(std::string const&, std::shared

[Thomas Schober]

Hi,

i compiled grpc according to the documentation by using MSYS2. I can compile the helloworld example without problems. No i wrote the following example :

#include <iostream>

#include "../protobuff/demo.pb.h"

#include "MathToolsImpl.h"

#include "grpc++/grpc++.h"

using namespace std;

int main()

{

    std::string server_address("127.0.0.1:50051");

    MathToolsImpl impl;

    grpc::ServerBuilder builder;

    builder.AddListeningPort(server_address,grpc::InsecureServerCredentials());

    builder.RegisterService(&impl);

    unique_ptr<grpc::Server> server(builder.BuildAndStart());

    std::cout << "Server started and listening";

    server->Wait();

}

When i comment out the line for AddListeningPort the program is linking fine. Any Idea what i am doing wrong ?

[Thomas Schober]

I found the problem by myself now. By some crazy mistake my IDE used a different compiler than i used for compiling grpc. So this was the actual problem. After i switched to the correct compiler it worked.

[zsf657...@gmail.com]

I have met the same error as you, and I compile the program with GCC 5.4.0. Which complier should I use?

在 2017年8月8日星期二 UTC+8下午4:36:19，Thomas Schober写道：