# Neos Server

**URL:** <https://discourse.julialang.org/t/neos-server/77549>\
**Category:** Optimization (Mathematical)\
**Tags:** question, package\
**Created:** [March 8, 2022, 2:07am UTC](https://discourse.julialang.org/t/neos-server/77549 "2022-03-08T02:07:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Francisco\_Javier\_Mar](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/francisco_javier_mar/32/24679_2.png) [@Francisco\_Javier\_Mar](https://discourse.julialang.org/u/Francisco_Javier_Mar)\
**Post date:** [March 8, 2022, 2:07am UTC](https://discourse.julialang.org/t/neos-server/77549/1 "2022-03-08T02:07:00Z")

</div>

I got this error while trying to install NEOSServer. What can I do ?

```julia
ERROR: Unsatisfiable requirements detected for package HTTP [cd3eb016]:
 HTTP [cd3eb016] log:
 ├─possible versions are: [0.6.10-0.6.14, 0.7.0-0.7.1, 0.8.0-0.8.19, 0.9.0-0.9.14, 0.9.16-0.9.17] or uninstalled
 ├─restricted by compatibility requirements with Atom [c52e3926] to versions: 0.8.0-0.8.19
 │ └─Atom [c52e3926] log:
 │ ├─possible versions are: [0.8.0-0.8.8, 0.9.0-0.9.1, 0.10.0-0.10.2, 0.11.0-0.11.3, 0.12.0-0.12.36] or uninstalled
 │ └─restricted to versions 0.12.25 by an explicit requirement, leaving only versions 0.12.25
 └─restricted by compatibility requirements with NEOSServer [f10290a3] to versions: [0.9.0-0.9.14, 0.9.16-0.9.17] — no versions left
   └─NEOSServer [f10290a3] log:
     ├─possible versions are: 0.4.0-0.4.2 or uninstalled
     └─restricted to versions * by an explicit requirement, leaving only versions 0.4.0-0.4.2

```

---

<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:** [March 8, 2022, 2:19am UTC](https://discourse.julialang.org/t/neos-server/77549/2 "2022-03-08T02:19:13Z")

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Based on your post [CBC solver](https://discourse.julialang.org/t/cbc-solver/77548), I assume you’re trying this on Julia 1.5. Please update to Julia v1.6 or v1.7: [Download Julia](https://julialang.org/downloads/). NEOSServer.jl is unsupported on Julia v1.5.