[Artanis] Cannot run after installation

[csh]

Cannot run after installation
no code for module

Trisquel 7, Guix

$ guix pull
$ guix package -i artanis
$ guix package -i guile

http://www.gnu.org/software/artanis/manual/html_node/Use-Guile-REPL-and-verify-GNU-Artanis-installation.html#Use-Guile-REPL-and-verify-GNU-Artanis-installation

$ guile
scheme@(guile-user)> ,use (artanis artanis)
While executing meta-command:
ERROR: no code for module (artanis artanis)