bug#42601: Guix install bug: error: Unbound variable: ~S

[Ricardo Wurmus]

Jan Wielkiewicz <tona_kosmicznego_smiecia@interia.pl> writes:

> Dnia 2020-07-29, o godz. 19:57:35
> Ricardo Wurmus <rekado@elephly.net> napisał(a):
>
>> 
>> What is the actual diff?  I see that (gnu packages hardware) does not
>> import (gnu packages avr), so it’s expected that “avr-toolchain”
>> cannot be found.
>> 
>
> Okay, I tested it and it fails on "avr-toolchain", even though I have
> #:use-module (gnu packages avr).

“avr-toolchain” is a procedure, not a package.  Use “avr-toolchain-4.9”
or “avr-toolchain-5”.

-- 
Ricardo