Reconfiguring fails with parsing error

[Gabor Gero via]

Hello,



Whenever I try to run sudo guix system reconfigure, after checking the 
substitute servers, it fails with

guix system: error: error parsing derivation 
`/gnu/store/73d9nck9zdas8yvdj5k94l1x0yw8802d-guix-1.4.0-32.5f6fdad.drv': 
expected string `Derive(['







I'm on commit c4fcf8fb627c9ea54a4a639a81766e5df3973fdc.



Any help would be appreciated,

Gabor Gero