Re: ice-9/eval.scm:142:16: In procedure compile-top-call:

[Jeremy Korwin-Zmijowski]

Hello Guixters!

Hope you are doing well. 

Thank you, Pierre and Julien, for your answers.

I am still looking for a convenient (but almost clean) way to work on
my package definition. Maybe I push it too much, I don't know.

I freshly cloned and built Guix from sources this morning. And I still
encounter this strange behavior... Which I don't when I am in a pure
environment...

   $ guix environment --pure guix
   [dev]$ echo '(use-modules (guix packages) (guix build-system emacs)
   (guix licenses) (guix git-download)) (package (name "") (version "")
   (source (origin (uri (git-reference (url "") (commit ""))) (method
   git-fetch) (sha256 (base32 "")))) (build-system emacs-build-system)
   (synopsis "") (description "") (license bsd-3) (home-page ""))' >
   /tmp/dummy-package-definition.scm
   [dev]$ ./pre-inst-env guix build -f /tmp/dummy-package-
   definition.scm
   guix build: error: derivation
   `/gnu/store/fkr651kwnllq46550ml6qjavi015d21d-git-checkout.drv' has
   incorrect output `/gnu/store/7ygy97wz9d1zcbz3k2kg1ga9g389bd7b-git-
   checkout', should be `/gnu/store/0fd9p27axy1jdw7fv29fa8i3sa0vajbl-
   git-checkout'
   [dev]$ ^C
   [dev]$ exit
   $ echo '(use-modules (guix packages) (guix build-system emacs) (guix
   licenses) (guix git-download)) (package (name "") (version "")
   (source (origin (uri (git-reference (url "") (commit ""))) (method
   git-fetch) (sha256 (base32 "")))) (build-system emacs-build-system)
   (synopsis "") (description "") (license bsd-3) (home-page ""))' >
   /tmp/dummy-package-definition.scm
   $ ./pre-inst-env guix build -f /tmp/dummy-package-definition.scm
   ice-9/eval.scm:142:16: In procedure compile-top-call:
   error: git-reference: unbound variable
   hint: Did you forget `(use-modules (guix git-download))'?

Here is the Guix version from source :

   $ ./pre-inst-env guix --version
   guix (GNU Guix) 1.0.1.12434-51f30-dirty
   Copyright (C) 2020 the Guix authors
   License GPLv3+: GNU GPL version 3 or later <
   http://gnu.org/licenses/gpl.html>
   This is free software: you are free to change and redistribute it.
   There is NO WARRANTY, to the extent permitted by law.

And the one on my system :

   $ guix --version
   guix (GNU Guix) 4f236f84a964c5d7071a08407f5b602dcb14c8ad
   Copyright © 2020 les auteurs de Guix
   Licence GPLv3+ : GNU GPL version 3 ou ultérieure <
   http://www.gnu.org/licenses/gpl.fr.html>
   Ceci est un logiciel libre : vous êtes libre de le modifier et de le
   redistribuer.
   Il n'y a AUCUNE GARANTIE, dans les limites permises par la loi.

I am running on Ubuntu 18.04.4 LTS

Is their any reason, any bug in my process ?

Jérémy