Infeasible or unbounded model

[dires]

I got this message for my optimization problem can anybody help me how to resolve this?

"Result index of attribute MathOptInterface.ObjectiveValue(1) out of bounds. There are currently 0 solution(s) in the model.
check_result_index_bounds at attributes.jl:170 [inlined]
get(model::Gurobi.Optimizer, attr::MathOptInterface.ObjectiveValue) at MOI_wrapper.jl:3126
_moi_get_result(model::Gurobi.Optimizer, args::MathOptInterface.ObjectiveValue) at JuMP.jl:1126
get(model::Model, attr::MathOptInterface.ObjectiveValue) at JuMP.jl:1154
objective_value(model::Model; result::Int64) at objective.jl:42
objective_value(model::Model) at objective.jl:42
top-level scope at ETMODEL Stochastic3.jl:206
eval at boot.jl:373 [inlined] "

[odow]

Read Solutions · JuMP

You need to check the various statuses to see if a solution exists.

[dires]

How can I do that?
I was doing a Stochastic optimization problem with one uncertain variable, that works perfectly. Then I incorporate a second uncertain variable with a different number of scenarios. then I get the message.

[odow]

How can I do that?

Follow the examples in the documentation. Use termination_status(model) to check if the solver found an OPTIMAL solution.

If you’re still struggling after reading the documentation, please provide a reproducible example:

Please read: make it easier to help you

Welcome to the Julia Discourse! We are enthusiastic about helping Julia programmers, both beginner and experienced. This public service announcement (PSA) outlines best practices when asking for help. Following these points makes it easier for us to help you and more likely you’ll get a prompt, useful answer. Keywords are highlighted to make it easier to refer to specific points. Choose a descriptive title that captures the key part of your question, eg “plots with multiple axes” instead of …

[dires]

I just follow the example and here is what I get. it returned The model was not solved correctly.

"
optimize!(ESTMODEL1)
primal_status(ESTMODEL1) " NO_SOLUTION::ResultStatusCode = 0"
if termination_status(ESTMODEL1) == MOI.OPTIMAL
optimal_solution = value.(Z2)
optimal_objective = objective_value(ESTMODEL1)

elseif termination_status(ESTMODEL1) == MOI.TIME_LIMIT && has_values(ESTMODEL1)
suboptimal_solution = value.(Z2)
suboptimal_objective = objective_value(ESTMODEL1)
else
error(“The model was not solved correctly.”)
end
termination_status(ESTMODEL1::Model) " INFEASIBLE_OR_UNBOUNDED::TerminationStatusCode = 6"
dual_status(ESTMODEL1::Model) "NO_SOLUTION::ResultStatusCode = 0
"

[odow]

Take another read of the “Please read” post. It describes how to format your code blocks.

The problem seems to be that the termination status was INFEASIBLE_OR_UNBOUNDED, which means that your problem doesn’t have a solution to query. You can also see that with the primal status of NO_SOLUTION.

If you expected your problem to have a finite optimal solution, then you should double check your formulation for mistakes.

[dires]

Okey! thank you I am doing that.