Hi Felix,

thanks very much for your help and efforts.

This was the decisive point.
Now it works.

I am open for any hint and I don't mind to get hundreds of pieces of 
advice, because I am hacking on the basics.

Kind regards

Gottfried


Am 01.11.22 um 21:35 schrieb Felix Lechner:
> Hi Gottfried,
> 
> On Tue, Nov 1, 2022 at 1:01 PM Gottfried <gottfried@posteo.de> wrote:
>>
>> I tried, it didn't help.
>> the same error message.
> 
> Well, I do not mean to appear argumentative but I did not see
>      (gnu service cups)
> at the top of the configuration you sent earlier in this thread.
> 
> The variable cups-service-type is defined there [1] and also exported
> from there. [2]
> 
> Hope this helps.
> 
> Kind regards
> Felix Lechner
> 
> [1] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L1026-L1060
> [2] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L38

--