ERROR: The following package names could not be resolved/Julia servers out of date

tl;dr, delete ~/.julia/registries/General and then run the following commands in Julia:

ENV["JULIA_PKG_SERVER"] = ""
import Pkg
Pkg.update()

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(original post) FYI I pushed v0.4.2 of SymbolicRegression.jl to the registry 15 hours ago, which is required for the latest PySR. However, the registry server is still not updating - which seems like an issue that sometimes happens: https://github.com/JuliaRegistries/General/issues/16777.

To get the Julia registry to stay up to date even if the registry server fails, you can use the git version instead. This can be done as follows:

1. Delete your registry folder ~/.julia/registries/General
2. Launch Julia.
3. Run the following commands:

ENV["JULIA_PKG_SERVER"] = ""
import Pkg
Pkg.update()

This will install the git version of the registry, which is always up-to-date.

[mkitti]

Yes, the url keyword allows you to refer to any git repository. Also note the rev keyword is used for the git revision which could be a commit hash, branch, or tag.

[MilesCranmer]

Starting with v0.7.4, #27 will never be an issue again since SymbolicRegression.jl is downloaded directly from the GitHub repo. Unpinning.