# using JuMP - LoadError: UndefVarError: start not defined

**URL:** <https://discourse.julialang.org/t/using-jump-loaderror-undefvarerror-start-not-defined/13853>\
**Category:** General Usage\
**Tags:** bug\
**Created:** [August 21, 2018, 8:20pm UTC](https://discourse.julialang.org/t/using-jump-loaderror-undefvarerror-start-not-defined/13853 "2018-08-21T20:20:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ExpandingMan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/expandingman/32/866_2.png) [@ExpandingMan](https://discourse.julialang.org/u/ExpandingMan)\
**Post date:** [August 21, 2018, 8:41pm UTC](https://discourse.julialang.org/t/using-jump-loaderror-undefvarerror-start-not-defined/13853/2 "2018-08-21T20:41:13Z")

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Please see [this announcement](https://discourse.julialang.org/t/jump-and-julia-0-7-1-0/12964) regarding the status of JuMP on 1.0.

The development version of JuMP is working on 1.0, so if you are feeling adventurous you can try using `dev JuMP`. Be advised however, that it is very much still in development.

In some other good news, I am very nearly done getting JuMP 0.18 to run on 1.0, so you should have it fairly soon. If you want to track the status see [this](https://github.com/JuliaOpt/JuMP.jl/pull/1432) PR.

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_[View the full topic](https://discourse.julialang.org/t/using-jump-loaderror-undefvarerror-start-not-defined/13853)._