# Conditional if else constraint in JuMP

**URL:** <https://discourse.julialang.org/t/conditional-if-else-constraint-in-jump/29177>\
**Category:** Optimization (Mathematical)\
**Tags:** jump\
**Created:** [September 25, 2019, 9:31pm UTC](https://discourse.julialang.org/t/conditional-if-else-constraint-in-jump/29177 "2019-09-25T21:31:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![gopal2017](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/gopal2017/32/31747_2.png) [@gopal2017](https://discourse.julialang.org/u/gopal2017)\
**Post date:** [September 25, 2019, 9:31pm UTC](https://discourse.julialang.org/t/conditional-if-else-constraint-in-jump/29177/1 "2019-09-25T21:31:57Z")

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Hi,  
I want to use conditional if else in JuMP. I have seen ConditionalJuMP at [https://juliaobserver.com/packages/ConditionalJuMP](https://juliaobserver.com/packages/ConditionalJuMP). But it won’t work for julia v0.5.2  
Please mention any package for indicator constraints.

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**Author:** ![longemen3000](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/longemen3000/32/7298_2.png) [@longemen3000](https://discourse.julialang.org/u/longemen3000)\
**Post date:** [September 26, 2019, 9:46pm UTC](https://discourse.julialang.org/t/conditional-if-else-constraint-in-jump/29177/2 "2019-09-26T21:46:10Z")

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> [@gopal2017](#):
>
> But it won’t work for julia v0.5.2  
> Please mention any package for indicator constraints.

maybe you can update julia?

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<div class="post-metadata">

**Author:** ![gopal2017](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/gopal2017/32/31747_2.png) [@gopal2017](https://discourse.julialang.org/u/gopal2017)\
**Post date:** [September 27, 2019, 11:13am UTC](https://discourse.julialang.org/t/conditional-if-else-constraint-in-jump/29177/3 "2019-09-27T11:13:35Z")

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No ConditionalJuMP is compatible with julia v 1