Hello! [...]
> Are you using Guix from a git checkout? In that case you’ll need to > recompile as there has been an ABI change. My normal Guix run from guix pull, but I do have a Guix checkout that I use with the pre-inst-env wrapper. I have this set in my ~/.emacs. --8<---------------cut here---------------start------------->8--- (setq guix-directory "~/src/guix") --8<---------------cut here---------------end--------------->8--- IIUC, that doesn't cause Emacs-Guix to use that Guix, only locate package definition. In any case, running make clean-go and rebuilding my guix source tree didn't make the issue go away, but I got a different error when using C-c . b (guix-devel-build-package-definition); it was failing to find the module (guix build utils), which led me to the bug 28144. The suggested workaround by Ludovic to delete the file guix/profiles.go made the problem go away. So this might be related. HTH, Maxim