# Why is my package precompiled on every startup?

**URL:** <https://discourse.julialang.org/t/why-is-my-package-precompiled-on-every-startup/55289>\
**Category:** New to Julia\
**Created:** [February 15, 2021, 1:27am UTC](https://discourse.julialang.org/t/why-is-my-package-precompiled-on-every-startup/55289 "2021-02-15T01:27:48Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![erans](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/erans/32/22032_2.png) [@erans](https://discourse.julialang.org/u/erans)\
**Post date:** [February 15, 2021, 9:10am UTC](https://discourse.julialang.org/t/why-is-my-package-precompiled-on-every-startup/55289/8 "2021-02-15T09:10:06Z")

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> [@marius311](#):
>
> Is your package or your `~/.julia` on a network filesystem where maybe something is going wonky with file modification times?

No, in this case it is in the documents folder (in Windows) so `Users\erans\Documents\MyPkg`

> [@marius311](#):
>
> Or in some containerized environment?

I’m not sure what that means 😬

> [@marius311](#):
>
> Or maybe you’re accidentally using two Julia versions without realizing it?

I’ve only installed Julia once on this computer, so that won’t be it.

> [@marius311](#):
>
> If you could produce a MWE where you do `using MyPkg` from the REPL at it precompiles without warnings, then quit and restart your Julia session without changing any code then do `using MyPkg` again and it triggers the “Precompiling” message, then I think this would be pretty valuable since it definitely sounds like a bug in Julia at some level.

I’ll give it a shot…though it’ll probably take a bit (it’ll have to wait until the evenings/weekends)

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