# Potential bug with package dependencies?

**URL:** <https://discourse.julialang.org/t/potential-bug-with-package-dependencies/47463>\
**Category:** New to Julia\
**Created:** [September 29, 2020, 3:33am UTC](https://discourse.julialang.org/t/potential-bug-with-package-dependencies/47463 "2020-09-29T03:33:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![xiaodai](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xiaodai/32/15937_2.png) [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Post date:** [September 29, 2020, 3:33am UTC](https://discourse.julialang.org/t/potential-bug-with-package-dependencies/47463/1 "2020-09-29T03:33:59Z")

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I am trying to install the latest version of Lazy.jl and Mux.jl together. But it’s failing to do so complaining about compatibility. So I dugged further

I can install all the **dependencies of latest Mux** and the **latest version of Lazy** but I can’t install **latest version of Mux and Lazy** see  
 ![image](https://global.discourse-cdn.com/julialang/original/3X/6/0/60754f7c892d3603a6e7f1e8a3470d97ba3fe69f.png)

I can install all the **dependencies of latest Lazy** and the **latest version of Mux** but I can’t install **latest version of Mux and Lazy**. See  
 ![image](https://global.discourse-cdn.com/julialang/original/3X/f/0/f0e685133dac8620dc4db64ed8f9c45935e88634.png)

This is really weird to me! How can I install all the dependencies of package with another package, but not the pacakge itself and the other package.

This is the dep of latest Mux.jl ![image](https://global.discourse-cdn.com/julialang/original/3X/b/3/b335363ba058234afc63a2de38629876a7bc11dd.png)

It can clearly accept the latest version of Lazy which is 0.15

This is latest compatt of lazy.jl

 ![image](https://global.discourse-cdn.com/julialang/original/3X/8/e/8e7d61baafb83b71636c4f6ed54c32cc8c8d832c.png)

and I can install MacroTools 0.5 with Mux with no Issues.

Weird.

 ![image](https://global.discourse-cdn.com/julialang/original/3X/2/d/2d06f938a8923415f5885d0a7bc5d267badfb6f8.png)

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**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:** [September 29, 2020, 3:52am UTC](https://discourse.julialang.org/t/potential-bug-with-package-dependencies/47463/2 "2020-09-29T03:52:05Z")

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Mux hasn’t been released with the compat bump.