Question about a compilation error in a file where I've written #include <gurobi_c++.h>.

Answered

悠太 萩原

September 01, 2025 13:51

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I'm having trouble with a compilation error in a file where I've written #include <gurobi_c++.h>. Below is the result of compiling mip1_c++.cpp.

/opt/gurobi1103/linux64/examples/c++$ make mip1_c++

g++     mip1_c++.cpp   -o mip1_c++
mip1_c++.cpp:11:10: fatal error: gurobi_c++.h: No such file or directory

  11 | #include "gurobi_c++.h"
     |          ^~~~~~~~~~~~~~

 

When I ran gurobi_cl in my home directory (~/), the following was displayed:

Set parameter Username
Set parameter LogFile to value "gurobi.log"
Using license file /home/whill/gurobi.lic
Academic license - for non-commercial use only - expires 2025-10-24

Usage: gurobi_cl [--command]* [param=value]* filename
Type 'gurobi_cl --help' for more information.
 

I wrote the following at the end of the bashrc file (~/.bashrc) in my home directory, as per the gurobi manual.

export GRB_LICENSE_FILE=~/gurobi.lic
export GUROBI_HOME="/opt/gurobi1103/linux64"
export PATH="${PATH}:${GUROBI_HOME}/bin"
export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${GUROBI_HOME}/lib"

Furthermore, I don't understand the note in the "building and running the examples" section at the URL below: A C++ program that uses Gurobi must link in both the Gurobi C++ library libgurobi_c++.a and the Gurobi C library libgurobi100.so."

 What exactly should I do? Is it related to this compilation error?

https://support.gurobi.com/hc/en-us/articles/17307434813073-Tutorial-Getting-Started-with-the-Gurobi-C-API

I would like to be able to use gurobi_c++.h！！

I would appreciate it if you could let me advice.

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• 

  Riley Clement

  • Gurobi Staff

  September 01, 2025 14:07

  Hi,

  Can you try the following command in your terminal?

  g++ -o mip1_c++.cpp -o mip1_c++ -I/opt/gurobi1103/linux64/include/ -L/opt/gurobi1103/linux64/lib -lgurobi_c++ -lgurobi110

  The part in bold is linking the Gurobi C++ library and the Gurobi C library

  This should produce an executable called mip1_c++ which you can then run

  - Riley

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  悠太 萩原

  September 02, 2025 03:49

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  Thank you for your kind advice!!

  
  I ran the following command and it worked fine!!

  g++ -o mip1_c++ mip1_c++.cpp -I/opt/gurobi1103/linux64/include/ -L/opt/gurobi1103/linux64/lib -lgurobi_c++ -lgurobi110

  Thank you for your continued support.

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