The first error I see is the compiler does not like the "-pkg" parameter 
although I do not think that in particular is cause the real error.

Is your protobuf library in your search path?  If not you'll need to add 
the path to the library using the "-L" option.

Regards,
Doug


On Friday, May 27, 2016 at 9:35:12 AM UTC-5, 조현성 wrote:
>
> Hi. 
>
> I have learned about protocol buffers and
>
> I want to socket data communication with protocol buffers in ubuntu C, C++
>
> but I have an error.
>
> I made a proto file(business.proto) and compiled the file 
>
> and got business.pb.cc & business.pb.h file.
>
> and copied that to eclipse project, and made a Server, Client (socket 
> programming code).
>
> Two code was typed #include "business.pb.h"
>
> and I typed terminal
>
> $ g++ Server.cpp business.pb.cc `-pkg -config --cflags --libs protobuf`
>
> and got this error....
>
>
> <https://lh3.googleusercontent.com/-rLlFtQnCjto/V0fkWfCKcyI/AAAAAAAAAEQ/nbcVz31ZmqU8P5fYQ8NdNF3ubZhpW7SGgCLcB/s1600/protoerr.jpg>
>
>
> <https://lh3.googleusercontent.com/-z4rHF29AxEk/V0fkYxWki_I/AAAAAAAAAEU/IJ22K5hI50s1uIKXdBSoKuqB0UrEmvS6wCLcB/s1600/protoerr2.jpg>
>
>
> <https://lh3.googleusercontent.com/-kMUnWqSiEj8/V0fkaj4kU6I/AAAAAAAAAEY/DDCnFtDHsAE71uIlaeYe8Ta9cE2L1iBfACLcB/s1600/protoerr3.jpg>
>
>
>
>
>
> and my initializing code(initialize message values), message(proto) file.
>
>
> <https://lh3.googleusercontent.com/--H_O9y9-hBM/V0fkfLPgVqI/AAAAAAAAAEc/clLsA1jABi470Kp6XnSzzgI2BfpYxQI0ACLcB/s1600/protoerr_code_message.jpg>
>
>
> What is matter, and what should i do...?
>
> please give me a answer.
>
> (how to compile command typing, files(.pb.cc//.pb.h) locations and so 
> on...)
>
> thx.
>

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