Hi, Thanks for getting back with me. Gentoo appears to have fixed this bug by linking julia/cert.pem to the system's ca-certificates.crt. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=26b59330b5222996defa4536237e62404bf21168 Is there a way I could rebuild my own slightly modified Julia with a link like that? I understand that there's probably a good reason that Guix's Julia doesn't by default have cert.pem, but I would be pleased with a hacky custom solution if it made Jupyter notebooks work. Thanks, Theodore Den mån 30 jan. 2023 kl 12:47 skrev Simon Tournier : > Hi, > > I confirm this bug. > > On sam., 28 janv. 2023 at 13:45, Theodore Ehrenborg < > theodore.ehrenborg@gmail.com> wrote: > > > [ Info: Precompiling IJulia [7073ff75-c697-5162-941a-fcdaad2a7d2a] > > ERROR: LoadError: InitError: SystemError: opening file > > > "/gnu/store/npj8z0g9nx14wl22yphqfs2c5w4qk5jk-julia-1.8.3/share/julia/cert.pem": > > No such file or directory > > [...] > > > I saw a very similar bug on Gentoo: > > [...] > > > (https://bugs.gentoo.org/888978) > > Well, that’s because Julia upstream does not take care about packagers; > as explicitly mentioned in this comment: > > > https://github.com/JuliaLang/MbedTLS.jl/pull/261#issuecomment-1346886879 > > The Guixer Cayetano Santos fixed upstream the issue for one package. > But as you are noticing it is not done for all. > > I do not know what is the best solution because the issue is coming from > Julia itself. > > Efraim, any suggestion? > > Cheers, > simon >