using ExcelReaders, JuMP, CPLEX, DataFrames; using JuMP, Clp; MinCD = JuMP.Model(solver=CPLEX.CplexSolver(CPX_PARAM_TILIM = 3600)); “UnDefVarError Model not defined” I did read most of the fixes for Model not defined, I have used all those solutions yet I am facing this error in the third line of…

I restarted Julia, opened the file again and executed and it worked fine. Thank You.

I have a new error when I define my decision variables. The error message is “UndefVarError @variable not defined” ’ ’ 'Julia using ExcelReaders, JuMP, CPLEX, DataFrames; parameters and Incides I = 5 J = 5 K = 5 S = 5 A = ones(I,J,K,S) #A = [[1 0 1 0 1];[0 0 1 1 0];[1 1 1 1 0];[0 1 0 0 0];[…

Three things. You’re using JuMP 0.18 (and maybe Julia 0.6?). You should upgrade to JuMP 0.19 and Julia 1.1. Close everything and restart Julia and Atom/Juno. Something is weird, but I have no idea what. To quote code, you need to use backpacks ``` rather than apostrophes ‘’’

UnDefVarError - Model not defined in Julia optimization problem

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rdeits May 21, 2019, 9:36pm 2

Could you please post the complete error output? You can follow the instructions here: PSA: how to quote code with backticks to quote your code so that it will render properly as well.

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UnDefVarError - Model not defined in Julia optimization problem

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