As I mentioned here: Constraints that do not work together - #4 by odow, you need to check if the solver found a solution before attempting to access a primal value.
In this case, your model is probably infeasible.
Read Debugging · JuMP
As I mentioned here: Constraints that do not work together - #4 by odow, you need to check if the solver found a solution before attempting to access a primal value.
In this case, your model is probably infeasible.
Read Debugging · JuMP