Hi,

On 12/4/21 11:08 PM, Haines Brown wrote:
> put copy of libdconf1_0/38.0-2.deb in that directory and ran
>

>    # apt install -f ./libdconf1
>    ...
>    Reading package lists... Done
>    E: Unsupported file ./libdconf1 given on commandline

You need to write the complete name of the package, including also the
.deb extension.

Aitor.