bash-5.1$ sudo -E guix system reconfigure config.scm
Password: 
Backtrace:
In srfi/srfi-1.scm:
   586:29 19 (map1 (#<<service> type: #<service-type mingetty 7f479b55b040> value: #<<mingetty-configurati…> …))
   586:29 18 (map1 (#<<service> type: #<service-type mingetty 7f479b55b040> value: #<<mingetty-configurati…> …))
   586:29 17 (map1 (#<<service> type: #<service-type agetty 7f479b55b840> value: #<<agetty-configuration> …> …))
   586:29 16 (map1 (#<<service> type: #<service-type syslog 7f479b57fdc0> value: #<<syslog-configuration> …> …))
   586:29 15 (map1 (#<<service> type: #<service-type console-fonts 7f479b512f40> value: (("tty1" . #<gexp …> …))
   586:29 14 (map1 (#<<service> type: #<service-type virtual-terminal 7f479b506080> value: #t> #<<service>…> …))
   586:29 13 (map1 (#<<service> type: #<service-type ntp 7f479aa76e40> value: #<<ntp-configuration> ntp: #…> …))
   586:29 12 (map1 (#<<service> type: #<service-type dbus 7f479b34a440> value: #<<dbus-configuration> dbus…> …))
   586:29 11 (map1 (#<<service> type: #<service-type elogind 7f47996ad400> value: #<<elogind-configuration…> …))
   586:29 10 (map1 (#<<service> type: #<service-type upower 7f47996a1580> value: #<<upower-configuration> …> …))
   586:29  9 (map1 (#<<service> type: #<service-type avahi 7f479965bec0> value: #<<avahi-configuration> av…> …))
   586:29  8 (map1 (#<<service> type: #<service-type wpa-supplicant 7f479aad29c0> value: #<<wpa-supplicant…> …))
   586:29  7 (map1 (#<<service> type: #<service-type network-manager 7f479aaba200> value: #<<network-manag…> …))
   586:29  6 (map1 (#<<service> type: #<service-type cups 7f4799783400> value: #<<cups-configuration> cups…> …))
   586:29  5 (map1 (#<<service> type: #<service-type openssh 7f47997db6c0> value: #<<openssh-configuration…> …))
   586:29  4 (map1 (#<<service> type: #<service-type gdm 7f4799623900> value: #<<gdm-configuration> gdm: #…> …))
   586:17  3 (map1 (#<<service> type: #<service-type httpd 7f4799741480> value: #<unspecified>> #<<service>…>))
In gnu/services/web.scm:
    442:2  2 (httpd-shepherd-services _)
In ice-9/boot-9.scm:
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Throw to key `match-error' with args `("match" "no matching pattern" #<unspecified>)'.