[horde] DAV not working

[Thomas Maass]

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Hi!
I did a fresh install of Horde 5.1.0 on my Debian Wheezy server.
I also installed SabreDAV, SabreCalDAV and SabreCardDAV.
When trying to access the DAV resource, I get this error in my
apache log:
PHP Fatal error:  Class 'Sabre\\DAVACL\\PrincipalCollection' not found
in /usr/share/php/Horde/Core/Factory/DavServer.php on line 37
and
script '/var/www/groupdav.php' not found or unable to stat
groupdav.php does not exist anywhere.

What am I doing wrong?

- -- 
gpg-id: D31AAEEA
http://www.setho.org/people
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