From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Subject: Re: Newt and Guix pull failing
Date: Tue, 23 Apr 2019 23:53:29 +0200
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In-Reply-To: <875zr7kkxa.fsf@posteo.net> (Brett Gilio's message of "Sun, 21
	Apr 2019 18:17:37 -0500")
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To: Brett Gilio <brettg@posteo.net>
Cc: help-guix <help-guix@gnu.org>

Hi Brett,

Brett Gilio <brettg@posteo.net> skribis:

> building /gnu/store/frc4lyhrijq5ss3n2zmz6bgkdfqr44k1-guix-system.drv...
> |builder for `/gnu/store/frc4lyhrijq5ss3n2zmz6bgkdfqr44k1-guix-system.drv=
' failed to produce output path `/gnu/store/mhkf633xnly60av67gvxnpmqcykjxxj=
x-guix-system'
> build of /gnu/store/frc4lyhrijq5ss3n2zmz6bgkdfqr44k1-guix-system.drv fail=
ed
> View build log at '/var/log/guix/drvs/fr/c4lyhrijq5ss3n2zmz6bgkdfqr44k1-g=
uix-system.drv.bz2'.
> cannot build derivation `/gnu/store/fmbl1qkfjiqarrhv4xxwbbq832372nlf-prof=
ile.drv': 1 dependencies couldn't be built
> guix pull: error: build of
> `/gnu/store/fmbl1qkfjiqarrhv4xxwbbq832372nlf-profile.drv' failed
>
> The first build log shows
>
> (repl-version 0 0)
> (exception misc-error (value #f) (value "~A ~S") (value ("no code for mod=
ule" (newt))) (value #f))

This is happening because modules of your channel depends on Guile-Newt,
and Guile-Newt is missing, so =E2=80=98guix pull=E2=80=99 fails to build yo=
ur channel
modules.

How would =E2=80=98guix pull=E2=80=99 know that your channel depends on Gui=
le-Newt?  It
cannot guess it, and currently there=E2=80=99s no way to express such a
dependency.

Does that make sense?

Also note that a channel is meant to provide packages or services, so it
is surprising to have a channel depend on Guile-Newt.

Ludo=E2=80=99.