PHP Fatal error: Class 'Sabre\VObject\Property\Text' not found

[hede]

Am Fri, 24 Jun 2016 21:33:42 +0200 schrieb hede <kolab983 at der-he.de>:

> [24-Jun-2016 21:16:54 Europe/Berlin] PHP Fatal error:  Class
> 'Sabre\VObject\Property\Text' not found
> in /usr/share/roundcubemail/plugins/libcalendaring/libvcalendar.php on
> line 1386

btw, that's not only the case with my own builds, but also with the binary builds from http://obs.kolabsys.com:82/Kolab:/Winterfell/Debian_8.0/

I freshly installed Debian 8.0 and Kolab via https://docs.kolab.org/installation-guide/winterfell/debian-8.html  -> results in the same error while trying to read mail with roundcube:

PHP Fatal error:  Class 'Sabre\VObject\Property\Text' not found in /usr/share/roundcubemail/plugins/libcalendaring/libvcalendar.php on line 1386
(/var/log/roundcubemail/errors)

I didn't find a solution so far. I've packaged php-sabre-vobject_3.4.5-1_all.deb and /usr/bin/vobject is working - finds it's libs - but libvcalendar.php is still non-functional. 

regards
hede