Yes I have and the same thing happens.

When I use: `guix environment --pure guix --ad-hoc coreutils findutils
which`
I am sent to another shell and it can't recognize pre-inst-env.


On Wed, 25 Mar 2020 at 01:27, Paul Garlick <
pgarlick@tourbillion-technology.com> wrote:

> Hi Daniela,
>
> Have you tried './pre-inst-env guix build ...' instead of 'guix build
> ...'?
>
> The difference is that the former command will look for package
> definitions in your checked out, and modified, version of Guix.
>
> The latter command looks for package definitions in your installed
> version of Guix.  Your modifications will be seen by this command after
> you submit a patch, it is committed, then you update your installed
> version with a 'guix pull'.
>
> Best regards,
>
> Paul.
>
>