# Having problem with Convex.jl

**URL:** <https://discourse.julialang.org/t/having-problem-with-convex-jl/77196>\
**Category:** Optimization (Mathematical)\
**Tags:** question, package\
**Created:** [February 28, 2022, 3:42pm UTC](https://discourse.julialang.org/t/having-problem-with-convex-jl/77196 "2022-02-28T15:42:57Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [February 28, 2022, 4:34pm UTC](https://discourse.julialang.org/t/having-problem-with-convex-jl/77196/2 "2022-02-28T16:34:33Z")

</div>

Welcome!

The error message in the screenshot makes it look like you have a very old version of Convex.jl; that references MathProgBase which we stopped using in Convex a few years ago.

> [@janilin](#):
>
> Updated Convex to 0.14.5 but still doesn’t work

How did you update? Try

```julia
using Pkg
Pkg.add(PackageSpec(name="Convex", version=v"0.14.5"))

```

If you get an error, copy the whole message here.

Also, please read this post: [Please read: make it easier to help you](https://discourse.julialang.org/t/please-read-make-it-easier-to-help-you/14757).

---

_[View the full topic](https://discourse.julialang.org/t/having-problem-with-convex-jl/77196)._