On 19-09-2022 19:38, Jérémy Korwin-Zmijowski wrote: > Hello, > > Today, I followed this steps to try to reproduce : [...]'. > > So, still failing but I don't get the same error… Is it valid according > to the bug declaration ? I'm not sure haha > Here is a simpler reproducer for that error: file a.scm: (use-modules (gnu packages) (guix packages) (guix gexp)) (package (inherit (specification->package "hello")) (source (local-file "a.scm"))) guix build -f a.scm --source Greetings, Maxime.