undefined reference

Answered

Samira Fallah

• January 23, 2023 05:04

Hi

I am having a problem when trying to use the Gurobi library in C++. Specifically, I am getting "undefined reference" errors during the linking process. I have added the necessary lines to my bashrc and am compiling my test file with the command

g++ test.cpp -o main -I../../../../software/gurobi1000/linux64/include -L../../../../software/gurobi1000/linux64/lib

I have attempted to research the issue, and have come across the following link by Gurobi support:
https://support.gurobi.com/hc/en-us/articles/360039093112-How-do-I-resolve-undefined-reference-errors-while-linking-Gurobi-in-C-.
I have verified that the libgurobi_c++.a file is present in the lib directory, however, the issue remains unresolved.

I would appreciate any help in resolving this issue.

Related to

• C++

0

• 

  David Torres Sanchez

  Gurobi Staff

  • January 23, 2023 09:13

  Hi Samira,

  It looks like you have to recompile the library: How do I resolve "undefined reference" errors while linking Gurobi in C++?

  Cheers, 
  David

  0
• 

  David Torres Sanchez

  Gurobi Staff

  • January 23, 2023 13:51

  Also, it seems that you have forgotten to import the library. Just add \(\texttt{-lgurobi100 -lgurobi_c++}\).

  Cheers, 
  David

  0
• 

  Samira Fallah

  • January 23, 2023 20:48

  

  

  

  I have been able to successfully compile utilizing:

  g++ test.cpp -o main -I../../../../software/gurobi1000/linux64/include -L../../../../software/gurobi1000/linux64/lib -lgurobi100 -lgurobi_c++
  
  Thanks!

  0

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