CODEWITHSUNDEEP
juliajulia-jump
RedbirdFan23
RedbirdFan23

Reputation: 35

UndefVarError in Julia

Very new to Julia and trying to work through some code. I keep getting this error: "ERROR: LoadError: LoadError: UndefVarError: @defVar not defined". The start of the code is below where I define the @defVar. Julia Version 1.1.1 (2019-05-16). Here is the code I am using:

using DataFrames
using GLPKMathProgInterface
using JuMP

num_lineups = 6
num_overlap = 4

path_data = "/users/matt/desktop/example_players.csv"
path_data2 = "/users/matt/desktop/example_players2.csv"
path_to_output= "/users/matt/desktop/output.csv"

m = Model(solver=GLPKSolverMIP())
    @defVar(m, players_a_lineup[i=1:num_players_a], Bin)
    @defVar(m, players_b_lineup[i=1:num_players_b], Bin)

Upvotes: 2

Views: 2746

Answers (1)

Marcus Ritt
Marcus Ritt

Reputation: 477

You are using an old syntax (@defvar has been used up to version 0.12). For the latest Julia/JuMP version 19, your code could should read

using DataFrames
using GLPK
using JuMP
...
m = Model(with_optimizer(GLPK.Optimizer))
@variable(m, players_a_lineup[i=1:num_players_a], Bin)
@variable(m, players_b_lineup[i=1:num_players_b], Bin)

Upvotes: 2

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