What is the issue with the following code? I upgraded the packages today and facing the error. It used to work before upgrading. using JuMP, Cbc,Ipopt,Optim m = Model(with_optimizer(Cbc.Optimizer)) @variable(m, 0 <= x <= 2 ) @variable(m, 0 <= y <= 30 ) @objective(m, Max, 5x + 3*y ) @constraint(m…

Please see JuMP v0.19.2 ⇒ v0.18.6 - #3 by odow . This is an unfortunate result of Pkg choosing to downgrade JuMP in order to update GLPK. Run rm GLPK up JuMP@0.19 add GLPK@0.10 It will be fixed by an upcoming release of JuMP.

Problem with optimisation code

General Usage

jling August 24, 2019, 3:16pm 3

Topic		Replies	Views
JuMP - with_optimizer method not working General Usage	2	3409	November 1, 2018
How to define an optimizer package? Optimization (Mathematical) question	6	1001	January 6, 2021
"UndefVarError: with_optimizer not defined" using GLPK Optimization (Mathematical) jump	6	3625	June 29, 2020
I cannot use the commands with_optimizer() and getobjectivevalue() with JuMP, Gurobi Optimization (Mathematical) jump	9	1004	July 17, 2024
Error (optimize! not defined) using JuMP optimizing routines Optimization (Mathematical)	2	1189	August 8, 2021

Problem with optimisation code

Related topics