guix 0.7 installation

[Federico Beffa]

Hi,

I'm trying to install guix 0.7 to give it a go and have got an error.

After
1) installing with: ./configure, make and sudo make install
2) authorize the gnu substitute with:
     sudo guix archive --authorize < hydra.gnu.org.pub
3) creating the builder users and group as described in the manual.
4) starting the deamon:
    sudo guix-daemon --build-users-group=guix-builder

I've tried to search for the emacs keyword with:
guix package -s emacs

and get a listing of some packages, but also the following error:
...

name: mit-scheme
version: 9.1.1
Backtrace:
In ice-9/boot-9.scm:
 149: 19 [catch #t #<catch-closure 281d4c0> ...]
 157: 18 [#<procedure 27bb0f0 ()>]
In unknown file:
   ?: 17 [catch-closure]
In ice-9/boot-9.scm:
  63: 16 [call-with-prompt prompt0 ...]
In ice-9/eval.scm:
 407: 15 [eval # #]
In ice-9/boot-9.scm:
2111: 14 [save-module-excursion #<procedure 27c0100 at
ice-9/boot-9.scm:3646:3 ()>]
3651: 13 [#<procedure 27c0100 at ice-9/boot-9.scm:3646:3 ()>]
1380: 12 [%start-stack load-stack ...]
1385: 11 [#<procedure 27e2990 ()>]
In unknown file:
   ?: 10 [primitive-load "/usr/local/bin/guix"]
In guix/ui.scm:
 662: 9 [run-guix-command package "-s" "emacs"]
:In guix/scripts/package.scm:
1072: 8 [guix-package "-s" "emacs"]
1047: 7 [process-query (# # # # ...)]
In ice-9/boot-9.scm:
 149: 6 [catch system-error ...]
 157: 5 [#<procedure 371dc80 ()>]
In srfi/srfi-1.scm:
 619: 4 [for-each #<procedure 3720ba0 at
guix/scripts/package.scm:1048:22 (t-66360)> ...]
In guix/ui.scm:
 458: 3 [package->recutils # #<output: file 1> 80]
In unknown file:
   ?: 2 [sort (# # #) #<procedure package<? (p1 p2)>]
In guix/ui.scm:
 464: 1 [package<? # #]
In guix/packages.scm:
 280: 0 [package-full-name #]

guix/packages.scm:280:17: In procedure package-full-name:
guix/packages.scm:280:17: In procedure package-name: Wrong type
argument: #<origin
"mirror://gnu/mit-scheme/stable.pkg/9.1.1/mit-scheme-9.1.1-x86-64.tar.gz"
hushdk3b6czhbv4erhndsootyrnjxmlxenmunn5pumyooynktxyq () 3f8f150>
...

Have I missed any step?

Thank you for your help!
Regards,
Fede

P.S.: you find the full output in the attached file.

guix-search-error.log
Description: Text Data