# Getting an error with the Colors package

**URL:** <https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766>\
**Category:** New to Julia\
**Tags:** question, error\
**Created:** [August 11, 2020, 10:16pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766 "2020-08-11T22:16:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![RaphaelT](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/raphaelt/32/17086_2.png) [@RaphaelT](https://discourse.julialang.org/u/RaphaelT)\
**Post date:** [August 11, 2020, 10:16pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766/1 "2020-08-11T22:16:15Z")

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Hi, I am super new to Julia and I started off my doing the first course in JuliaAcademy. This course also recommended installing the “Colors” package at some point. Right now, I am trying out some stuff, but suddenly, my julia package manager stopped working, seemingly because of the “Colors” package. Which is weird, because I have been using this package before and it worked fine. Right now I am trying to install PlotlyJS but `pkg>` won’t let me. No matter whether I try to `add` a new package or `up` all packages, I am getting the following error:

```julia
ERROR: Unsatisfiable requirements detected for package Colors [5ae59095]:
 Colors [5ae59095] log:
 ├─Colors [5ae59095] has no known versions!
 └─restricted to versions * by an explicit requirement — no versions left

```

I have no idea why this is even happening and how to resolve this! Any help would be greatly appreciated.

Infos:

- This error occurred on the command line, using the `pkg>` prompt
- I am mainly using nteract to try out stuff
- I also tried out the Julia IntelliJ plugin (which is, to be honest, quite immature), and in its REPL environment I first saw this error message. Does it have to do anything with the plugin or IntelliJ?

Edit 1:

I tried to `rm` the package “Colors”, which worked fine, but when I tried to `add` it again, the same error ocurred

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**Author:** ![fredrikekre](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fredrikekre/32/1688_2.png) [@fredrikekre](https://discourse.julialang.org/u/fredrikekre)\
**Post date:** [August 11, 2020, 10:25pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766/2 "2020-08-11T22:25:52Z")

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> [@RaphaelT](#):
>
> ` ├─Colors [5ae59095] has no known versions!`

This suggest you have a corrupt or non-existing package registry. Try deleting `.julia/registries/General` and try again.

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**Author:** ![RaphaelT](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/raphaelt/32/17086_2.png) [@RaphaelT](https://discourse.julialang.org/u/RaphaelT)\
**Post date:** [August 11, 2020, 10:35pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766/3 "2020-08-11T22:35:12Z")

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Thank you for your reply! I will try this tomorrow, hopefully this will resolve the problem.

But I am curious, any idea how the registry could have been corrupted?

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**Author:** ![airpmb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/airpmb/32/7826_2.png) [@airpmb](https://discourse.julialang.org/u/airpmb)\
**Post date:** [October 9, 2020, 6:09pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766/4 "2020-10-09T18:09:41Z")

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I’ve also had to do this twice now and am wondering too what causes it, and also if there are any negative side-effects of deleting the registry.

If there are none, perhaps the `Unsatisfiable requirements` could include a suggestion to delete the registry.

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**Author:** ![t-pollington](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/t-pollington/32/20074_2.png) [@t-pollington](https://discourse.julialang.org/u/t-pollington)\
**Post date:** [March 15, 2021, 10:11pm UTC](https://discourse.julialang.org/t/getting-an-error-with-the-colors-package/44766/5 "2021-03-15T22:11:12Z")

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In fact I’d do as far as the whole of the `/registries` folder.