For some reasons, I currently still have to use JuMP 0.18. When I updated Gurobi to the latest version 9.1 and Gurobi.jl to 0.9.3, I got some problems building my model.
When I do it with
I receive the error
UndefVarError: GurobiSolver not defined
So I want to know if I want to use Gurobi 9.1 with JuMP 0.18, how should I set my packages’ version?
Thank you so much.