gnu/services/shepherd.scm:90:2: In procedure allocate-struct: Wrong type argument in position 2: 5

[Huang\, Ying]

Hi, All,

I use the guix git.  After not upgrade the code for quite some time
(several months?), today after `git pull`, `guix environment guix`
report the following error.  How to deal with it?

Backtrace:
In ice-9/boot-9.scm:
   230:29 19 (map1 _)
   230:29 18 (map1 _)
   230:29 17 (map1 _)
   230:29 16 (map1 _)
   230:29 15 (map1 _)
   230:29 14 (map1 _)
   230:29 13 (map1 _)
   230:29 12 (map1 _)
   230:29 11 (map1 _)
   230:29 10 (map1 _)
   230:29  9 (map1 (((gnu packages firmware)) ((gnu services)) ((gnu services 
shepherd)) …))
   230:29  8 (map1 (((gnu services)) ((gnu services shepherd)) ((gnu services 
base)) (#) …))
   230:17  7 (map1 (((gnu services shepherd)) ((gnu services base)) ((gnu 
bootloader)) # …))
  2792:17  6 (resolve-interface (gnu services shepherd) #:select _ #:hide _ 
#:prefix _ # _ …)
  2718:10  5 (_ (gnu services shepherd) _ _ #:ensure _)
  2986:16  4 (try-module-autoload _ _)
   2316:4  3 (save-module-excursion #<procedure 673cd50 at 
ice-9/boot-9.scm:2987:17 ()>)
  3006:22  2 (_)
In unknown file:
           1 (primitive-load-path "gnu/services/shepherd" #<procedure 6b514a0 
at ice-9/boo…>)
In gnu/services/shepherd.scm:
     90:2  0 (_)

gnu/services/shepherd.scm:90:2: gnu/services/shepherd.scm:90:2: In procedure 
allocate-struct: Wrong type argument in position 2: 5

Best Regards,
Huang, Ying