On Mon, 28 Aug 2017 21:52:32 +0300
Efraim Flashner <efraim@flashner.co.il> wrote:

> efraim@macbook42:~/workspace/guix$ time nice ./pre-inst-env guix
> system build ~/lightweight-desktop.scm Backtrace:
>           11 (primitive-load
> "/home/efraim/workspace/guix/scripts/gu…") In guix/ui.scm:
>   1331:12 10 (run-guix-command _ . _)
> In ice-9/boot-9.scm:
>     837:9  9 (catch _ _ #<procedure 7f4e83aea8c0 at guix/ui.scm:448…>
> …) 837:9  8 (catch _ _ #<procedure 7f4e83aea8d8 at guix/ui.scm:536…>
> …) In guix/scripts/system.scm:
>    1022:8  7 (_)
>     905:6  6 (process-action _ _ _)
> In guix/store.scm:
>   1441:24  5 (run-with-store _ _ #:guile-for-build _ #:system _)
> In guix/scripts/system.scm:
>     637:2  4 (_ _)
> In gnu/system.scm:
>     884:4  3 (_ _)
> In gnu/bootloader/grub.scm:
>    343:29  2 (grub-configuration-file #<<bootloader-configuration> …>
> …) 207:30  1 (eye-candy #<<bootloader-configuration> bootloader: #<…>
> …) 149:22  0 (grub-background-image #<<bootloader-configuration> bo…>
> …)
> 
> gnu/bootloader/grub.scm:149:22: In procedure grub-background-image:
> gnu/bootloader/grub.scm:149:22: In procedure struct_vtable: Wrong
> type argument in position 1 (expecting struct): 5
> 

I tried this, and got the same error, but then I deleted all the .go
files, re-ran make, and then tried again, and then it worked.

→ ./pre-inst-env guix system build gnu/system/examples/lightweight-desktop.tmpl 
/gnu/store/hqjri2wz5sz32fabv7cr85zirnbsmvjs-system

I'm not quite sure what this means.... my understanding of Guile is a
bit vague.