[chora] errors setting up chora

[Dennis Lubert]

Hi,
I tried to set up choraon my apache,but I get these errors, and don't know 
why ! (using chora 1.0 & hordes2.0)
Warning: Undefined index: chora in 
/usr/local/httpd/htdocs/cvs/horde/lib/Registry.php on line 458
Warning: Undefined index: options in 
/usr/local/httpd/htdocs/cvs/lib/base.php on line 45
Warning: Undefined index: use_path_info in 
/usr/local/httpd/htdocs/cvs/lib/base.php on line 116
Warning: Cannot add header information - headers already sent by (output 
started at /usr/local/httpd/htdocs/cvs/horde/lib/Re gistry.php:458) in 
/usr/local/httpd/htdocs/cvs/lib/base.php on line 97
Warning: Undefined index: chora in 
/usr/local/httpd/htdocs/cvs/horde/lib/Registry.php on line 602
Warning: Failed opening '/error_page.inc' for inclusion 
(include_path='.:/usr/lib/php') in /usr/local/httpd/htdocs/cvs/lib/b 
ase.php on line 98

ne hints please ?
regards
Dennis Lubert