# "Module Parsers is missing from the cache"

**URL:** <https://discourse.julialang.org/t/module-parsers-is-missing-from-the-cache/30765>\
**Category:** Julia at Scale\
**Created:** [November 5, 2019, 7:03pm UTC](https://discourse.julialang.org/t/module-parsers-is-missing-from-the-cache/30765 "2019-11-05T19:03:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BioTurboNick](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bioturbonick/32/6380_2.png) [@BioTurboNick](https://discourse.julialang.org/u/BioTurboNick)\
**Post date:** [November 5, 2019, 7:03pm UTC](https://discourse.julialang.org/t/module-parsers-is-missing-from-the-cache/30765/1 "2019-11-05T19:03:21Z")

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I made some changes to my package and then tried running it with workers. Now I get these errors on the workers:

`Warning: Module Parsers with build ID 337459641262600 is missing from the cache.`  
`Cannot write cache file "C:\Users\nicho\.julia\compiled\v1.2\DataStructures\xKiwJ.ji".`

And more like that.

It was working fine, now it isn’t; did I do something wrong? Is this a bug?

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<div class="post-metadata">

**Author:** ![BioTurboNick](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bioturbonick/32/6380_2.png) [@BioTurboNick](https://discourse.julialang.org/u/BioTurboNick)\
**Post date:** [November 5, 2019, 7:08pm UTC](https://discourse.julialang.org/t/module-parsers-is-missing-from-the-cache/30765/2 "2019-11-05T19:08:53Z")

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Nevermind, between restarts and `]update` somehow it fixed itself. _shrugs_

Edit: Turns out I was staring at the solution the whole time and didn’t see it: [FAQ · Juno Documentation](http://docs.junolab.org/latest/man/faq/#Some-Juno-package-is-using-the-wrong-precompile-cache,-what-do-I-do?-1)