On latest guix d30ce4a7e2ba8f4eca7b99bb8483353c753e91bf ./pre-inst-env guix pack hello
works. But this does not: ./pre-inst-env guix pack hello -f docker I am sure guile-json is in the path (see below). The following derivation will be built: /gnu/store/xhfrvmh7vh2ipm32rdyisagnr5ac462x-docker-pack.tar.gz.drv Backtrace: In ice-9/boot-9.scm: 1734: 19 [%start-stack load-stack #<procedure 8f6de0 at ice-9/boot-9.scm:4080:10 ()>] 1739: 18 [#<procedure 8f76c0 ()>] In unknown file: ?: 17 [primitive-load "/gnu/store/k7gzj72ax2i5fxc4n6v02bkhwwi3a94g-docker-pack.tar.gz-builder"] In ice-9/eval.scm: 505: 16 [#<procedure 79c6a0 at ice-9/eval.scm:499:4 (exp)> (begin # # # ...)] In ice-9/psyntax.scm: 1107: 15 [expand-top-sequence ((begin # # # ...)) () ((top)) ...] 990: 14 [scan ((begin (add-to-load-path #) (use-modules # #) ...)) () ...] 990: 13 [scan (# # #) () (#) ...] 279: 12 [scan ((# #) #(syntax-object *unspecified* # #)) () (()) ...] In ice-9/boot-9.scm: 3622: 11 [process-use-modules (((guix docker)) ((srfi srfi-19)))] 712: 10 [map #<procedure 857840 at ice-9/boot-9.scm:3622:25 (mif-args)> ((#) (#))] 3623: 9 [#<procedure 857840 at ice-9/boot-9.scm:3622:25 (mif-args)> ((guix docker))] 2900: 8 [resolve-interface (guix docker) #:select ...] 2825: 7 [#<procedure 84a120 at ice-9/boot-9.scm:2813:4 (name #:optional autoload version #:key ensure)> # ...] 3101: 6 [try-module-autoload (guix docker) #f] 2412: 5 [save-module-excursion #<procedure 8fd270 at ice-9/boot-9.scm:3102:17 ()>] 3121: 4 [#<procedure 8fd270 at ice-9/boot-9.scm:3102:17 ()>] In unknown file: ?: 3 [primitive-load-path "guix/docker" ...] In ./guix/docker.scm: 34: 2 [#<procedure 90c560 ()>] In ice-9/boot-9.scm: 2903: 1 [resolve-interface (json) #:select ...] In unknown file: ?: 0 [scm-error misc-error #f "~A ~S" ("no code for module" (json)) #f] ERROR: In procedure scm-error: ERROR: no code for module (json) builder for `/gnu/store/xhfrvmh7vh2ipm32rdyisagnr5ac462x-docker-pack.tar.gz.drv' failed with exit code 1 guix pack: error: build failed: build of `/gnu/store/xhfrvmh7vh2ipm32rdyisagnr5ac462x-docker-pack.tar.gz.drv' failed Environment: penguin2:~/genenetwork/gn-latest-guix$ guile --version guile (GNU Guile) 2.0.14 Copyright (C) 2016 Free Software Foundation, Inc. penguin2:~/genenetwork/gn-latest-guix$ set|grep GUILE GUILE_LOAD_COMPILED_PATH=/home/pjotr/.guix-profile/share/guile/site/2.0 GUILE_LOAD_PATH=/home/pjotr/.guix-profile/share/guile/site/2.0 penguin2:~/genenetwork/gn-latest-guix$ ls /home/pjotr/.guix-profile/share/guile/site/2.0 json json.go json.scm --