bug#50624: Importing (gnu packages lxqt) in gnu/packages/kde-frameworks.scm causes unbound variable error.

[Brendan Tildesley]

I want to use libdbusmenu-qt in kde-frameworks.scm, but just adding 
#:use-modules (gnu packages lxqt)
and running some guix package command results in this. What should I do? Thanks.



$ ./pre-inst-env guix show knotifications
;;; note: source file /home/b/code/guix-cryfs/gnu/packages/kde-frameworks.scm
;;;       newer than compiled 
/home/b/code/guix-cryfs/gnu/packages/kde-frameworks.go
;;; note: source file /home/b/code/guix-cryfs/gnu/packages/kde-frameworks.scm
;;;       newer than compiled 
/run/current-system/profile/lib/guile/3.0/site-ccache/gnu/packages/kde-frameworks.go
error: curl: unbound variable
hint: Did you forget a `use-modules' form?

error: googletest: unbound variable
hint: Did you forget a `use-modules' form?

error: bzip2: unbound variable
hint: Did you forget a `use-modules' form?

error: binutils: unbound variable
hint: Did you forget a `use-modules' form?

error: gcc-4.9: unbound variable
hint: Did you forget a `use-modules' form?

error: python-2: unbound variable
hint: Did you forget a `use-modules' form?

error: tcc: unbound variable
hint: Did you forget a `use-modules' form?

error: gnu-make: unbound variable
hint: Did you forget a `use-modules' form?

error: unzip: unbound variable
hint: Did you forget a `use-modules' form?

error: binutils: unbound variable
hint: Did you forget a `use-modules' form?

error: perl: unbound variable
hint: Did you forget a `use-modules' form?

error: coreutils: unbound variable
hint: Did you forget a `use-modules' form?

Throw to key `unbound-variable' with args `("resolve-interface" "no binding 
`~A' in module ~A" (python (gnu packages python)) #f)'.
Backtrace:
In ice-9/boot-9.scm:
  1752:10 19 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
          18 (apply-smob/0 #<thunk 7f7db883df60>)
In ice-9/boot-9.scm:
    724:2 17 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
In ice-9/eval.scm:
    619:8 16 (_ #(#(#<directory (guile-user) 7f7db8837c80>)))
In guix/ui.scm:
   2185:7 15 (run-guix . _)
  2148:10 14 (run-guix-command _ . _)
In ice-9/boot-9.scm:
  1752:10 13 (with-exception-handler _ _ #:unwind? _ # _)
In guix/scripts/package.scm:
    906:9 12 (_)
In srfi/srfi-1.scm:
    634:9 11 (for-each #<procedure 7f7db56b19e8 at guix/scripts/pac…> …)
In guix/scripts/package.scm:
   911:29 10 (_ _)
In gnu/packages.scm:
   292:55  9 (_ "knotifications" _)
In unknown file:
           8 (force #<promise #<procedure 7f7db7161020 at gnu/packag…>)
In gnu/packages.scm:
   239:33  7 (fold-packages #<procedure 7f7db52c6f40 at gnu/package…> …)
In guix/discovery.scm:
   153:11  6 (all-modules _ #:warn _)
In srfi/srfi-1.scm:
   460:18  5 (fold #<procedure 7f7db6c2b000 at guix/discovery.scm:1…> …)
In guix/discovery.scm:
   143:19  4 (_ _ ())
In srfi/srfi-1.scm:
   691:23  3 (filter-map #<procedure 7f7db6c2db20 at guix/discove…> . #)
In guix/discovery.scm:
   118:22  2 (_ . _)
In guix/ui.scm:
    324:2  1 (report-unbound-variable-error _ #:frame _)
In ice-9/boot-9.scm:
  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" 
(unbound-variable "resolve-interface" "no binding `~A' in module ~A" (python 
(gnu packages python)) #f))'.