Getting an error with the Colors package

New to Julia
,
1

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:

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

2

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

3 Likes
3

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?

4

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.

1 Like
5

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