[horde] Horde 4.0 error: hordetree.js not found

[Andreas Müller]

Hello,

just tried several times to install Horde 4.0-beta according these 
instructions:

pear channel-discover pear.horde.org
pear install horde/horde_role-beta
pear run-scripts horde/horde_role

pear install horde/horde-beta

cd /var/www/horde/config/
   cp conf.php.dist conf.php

Went okay so far. But now when I go to my URL, there is no sidebar at 
left, so I can't configure anything.

Apache error-log throws this:

[Thu Mar 17 15:45:50 2011] [error] [client 192.168.2.14] File does not 
exist: /var/www/web/horde4-beta/js/hordetree.js, referer: 
http://mydomain.tld/horde4-beta/services/portal/

Indeed, there is no hordetree.js anywhere. Someone could give me a hint, 
please?


Thanks
Andreas