# About Start Values in JuMP - MOA

**URL:** <https://discourse.julialang.org/t/about-start-values-in-jump-moa/104500>\
**Category:** Optimization (Mathematical)\
**Created:** [October 2, 2023, 2:39pm UTC](https://discourse.julialang.org/t/about-start-values-in-jump-moa/104500 "2023-10-02T14:39:24Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [October 5, 2023, 1:39pm UTC](https://discourse.julialang.org/t/about-start-values-in-jump-moa/104500/7 "2023-10-05T13:39:54Z")

</div>

> Result count : 1

This is weird. You’re solving a multi-objective optimization problem, but there is only one solution. I think the problem with the demand restriction is just difficult to solve?

Did you try excluding the `0 >= 0` constraints, like I suggested in [HiGHS Error: No invertible representation for getDualRay - #16 by odow](https://discourse.julialang.org/t/highs-error-no-invertible-representation-for-getdualray/101372/16)?

> Any other solver could do HiGHs job is worth trying?

You could try Gurobi

---

_[View the full topic](https://discourse.julialang.org/t/about-start-values-in-jump-moa/104500)._