Following install from youtube getting error "debconf: unable to initialize frontend: Dialog"


Hi all!
I am following the youtube video

My OS is From Google Compute - the standard 18.04 as discussed
All of the following went fine:
PGP Key import
Download files
Then I choose jetty (by not installing nginx/apch)
I will use letsencrypt
— and no joy—
I really have no preferences as to setup for webserver
The error below is specific enough so that general googling gets me no answer.
Anyone have advice?

Here is the relevant console return from the command

Setting up jitsi-meet-prosody (1.0.3081-1) …
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend c
annot be used. at /usr/share/perl5/Debconf/FrontEnd/ line 76.)
debconf: falling back to frontend: Readline
cp: cannot stat ‘/usr/share/doc/jitsi-meet-prosody/prosody.cfg.lua-jvb.example’: No
such file or directory
dpkg: error processing package jitsi-meet-prosody (–configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of jitsi-meet:
jitsi-meet depends on jitsi-meet-web-config (= 1.0.3081-1); however:
Package jitsi-meet-web-config is not configured yet.
jitsi-meet depends on jitsi-meet-prosody (= 1.0.3081-1); however:
Package jitsi-meet-prosody is not configured yet.
dpkg: error processing package jitsi-meet (–configure):
dependency problems - leaving unconfigured
Setting up libevent-2.0-5:amd64 (2.0.21-stable-2ubuntu0.16.04.1) …
No apport report written because the error message indicates its a followup error fr
om a previous failure.
Setting up lua-event:amd64 (0.4.3-2) …
Setting up authbind (2.1.1+nmu1) …
Processing triggers for systemd (229-4ubuntu21.10) …
Processing triggers for libc-bin (2.23-0ubuntu10) …
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)



This had been discussed before. The minimal images of Ubuntu used there does not allow installing anything in /usr/share/doc/ which for the moment is a requirement and this breaks the package installations. Can you change the type of image you use?


The same problem I mean was mentioned here: Installation can't finish, '/usr/share/doc/jitsi-meet-web-config/config.js': No such file or directory



I did successfully install - using a nginx web server and I got it up and running on that image.

On to the next.