From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: 'core-updates': should we mention Graphviz in "Requirements"?
Date: Thu, 27 Aug 2015 13:28:55 +0200
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=E7=99=BD=E3=81=84=E7=86=8A=EF=BC=A0=E7=9B=B8=E6=92=B2=E9=81=93 <guix-devel=
_gnu.org@sumou.com> skribis:

> ERROR: In procedure scm-error:
> ERROR: unsupported manifest format #<procedure %manifest-procedure
> (entries)>

It seems you=E2=80=99ve been somehow mixing versions, and this error was
produced by a Guix version older than the one use to upgrade your
profile, hence the error (and it=E2=80=99s a Guix version older than 0.8.3.)

Please make sure to use the latest Guix, and you should be fine.

HTH,
Ludo=E2=80=99.