While trying to run `guix pull` I am getting this this,

```
Backtrace:
In ice-9/boot-9.scm:
   222:29 19 (map1 _)
   222:29 18 (map1 _)
   222:29 17 (map1 _)
   222:29 16 (map1 _)
   222:29 15 (map1 _)
   222:29 14 (map1 _)
   222:29 13 (map1 _)
   222:29 12 (map1 _)
   222:17 11 (map1 (((gnu packages tex)) ((gnu packages xml)) ((…)) …))
  3327:17 10 (resolve-interface (gnu packages tex) #:select _ #:hide …)
In ice-9/threads.scm:
    390:8  9 (_ _)
In ice-9/boot-9.scm:
  3253:13  8 (_)
In ice-9/threads.scm:
    390:8  7 (_ _)
In ice-9/boot-9.scm:
  3544:20  6 (_)
   2836:4  5 (save-module-excursion _)
  3564:26  4 (_)
In unknown file:
           3 (primitive-load-path "gnu/packages/tex" #<procedure 7f3…>)
In gnu/packages/tex.scm:
  3011:13  2 (_)
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:
error: license:arphic-1999: unbound variable
```

I also tried `guix repl` and it looks like the error is from `(gnu packages
tex)`
```
scheme@(guix-user)> (use-modules (gnu packages tex))
While compiling expression:
error: license:arphic-1999: unbound variable
```