Install on ubuntu 20.04

[francoisPE]

Hello,

I install roundcube on ubuntu 20.04 through aptitude packages.
It results in an unusual configuration. See https://github.com/mstilkerich/rcmcarddav/blob/master/doc/INSTALL.md#installation-with-roundcube-installed-from-debianubuntu-repositories
I try to manage installation of your plugin same way. wget .../0.0.7.tar.gz && tar xvzf
When running composer install, it failed twice : Install of texxasrulez/libcalendaring and texxasrulez/libkolab failed !
next, running composer run-script post-install-cmd, it fails also because copyDateTimeParser.php is in roundcube/plugins/carddav/vendor/sabre/vobject/lib/DateTimeParser.php (probably due to workaround given by mstilkerich)

Would you please help my find a work around.
Where can I install your both lib ?
Are sql scheme build with my process ?
How can I implement change in roundcube/plugins/carddav/vendor/sabre/vobject/lib/DateTimeParser.php

many thanks

[francoisPE]

Did you have a chance to look at my issue ?