[Chameleon] PHP-error: msProcessProjection(): no options found in 'init' file

[Burkhard Koester]

Hello,

I just installed Chameleon 2.4.1 on a OpenSUSE 10.2 system using apache 
2.2 and php5.
Chameleon's admin-pages reports no problems with the PHP and MapServer 
environment. Even our Mapserver can be contacted via the admin-Site.

However, all sample scripts are producing emtpy pages and reporting the 
following PHP warnings/errors in Apache's error_log:
[Mon Jul 09 14:47:34 2007] [error] [client 84.129.81.58] PHP Warning: 
[MapServer Error]: msProcessProjection(): no options found in 'init' 
file\n in 
/internet/www/htdocs/chameleon/htdocs/common/wrapper/map_session.php on 
line 215
[Mon Jul 09 14:47:34 2007] [error] [client 84.129.81.58] PHP Warning: 
Failed to open map file 
/internet/www/htdocs/chameleon/samples/map/chameleon.map in 
/internet/www/htdocs/chameleon/htdocs/common/wrapper/map_session.php on 
line 215
[Mon Jul 09 14:47:34 2007] [error] [client 84.129.81.58] PHP Notice: 
Trying to get property of non-object in 
/internet/www/htdocs/chameleon/htdocs/chameleon.php on line 766
[Mon Jul 09 14:47:34 2007] [error] [client 84.129.81.58] PHP Fatal 
error:  Call to a member function set() on a non-object in 
/internet/www/htdocs/chameleon/htdocs/widgets/KeyMap/KeyMap.widget.php 
on line 197

I checked already that all files/dirs are accessible by the webserver 
and the map-file IS THERE (and accessible).

Can somebody please tell me what's going wrong there? Thanks!
I know: this problem was posted in Jul 2005 but nobody answered that 
time. I hope being more fortuate, this time :-)

regards
Burkhard