changeCobraSolver: Solver gurobi is installed but not working properly.

When I am changing cobrasolver to gurobi, this message is appeared:

changeCobraSolver: Solver gurobi is installed but not working properly.

ans =

logical

0

What does it mean?

I use matlab R2019a and i have installed gurobi solver.

[S Vijayakumar]

Hello Ioannis,

Are you using the Cobra Toolbox in MATLAB?

I was experiencing a similar issue recently and it turned out that my Gurobi license had expired.

• Do you have a currently active gurobi license stored in a directory accessible to MATLAB?
• What happens when you run changeCobraSolver('gurobi','LP',1,1)?

Supreeta

[Ioannis Vourvachakis]

Yes, that was the problem. My license had expired so I renew it. I got a little bit late till understand that but ok. Thank you.