Hi!

EuAndreh 写道：
> I tried adding it just like that to my config.scm declaration:
>
> --8<---------------cut 
> here---------------start------------->8---
>   (packages
>     (append
>       (map specification->package
>            '("git"
>              "git:send-email"
>              ...)
> --8<---------------cut 
> here---------------end--------------->8---
>
> But when running guix system reconfigure, it complains about it, 
> saying:
>
> --8<---------------cut 
> here---------------start------------->8---
> guix system: error: git:send-email: unknown package
> guix system: error: failed to load 'guix.scm':
> ice-9/boot-9.scm:222:17: In procedure map1:
> --8<---------------cut 
> here---------------end--------------->8---

Use specification->package+output.

Kind regards,

T G-R