[Wikipedia-l] Configuring wikipedia Error

[Ralf.Bodamer at t-systems.com]

Hi,
 
if i set up the wiki i receive the following error. Can one tell me how to
solve the Problem?
 
 
MediaWiki 1.3.10 installation
Please include all of the lines below when reporting installation problems.
 
Checking environment...
PHP 4.3.10: ok 
PHP server API is apache2handler; ok, using pretty URLs (index.php/Page_Title) 
Have XML / Latin1-UTF-8 conversion support. 
PHP is configured with no memory_limit. 
No zlib support. 
Couldn't find GD library or ImageMagick; image thumbnailing disabled. 
Installation directory: /wwwapp/wiki/wiki 
Script URI path: /wiki 
Notice: Constant NS_MEDIA already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 8
 
Notice: Constant NS_SPECIAL already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 9
 
Notice: Constant NS_MAIN already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 12
 
Notice: Constant NS_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 13
 
Notice: Constant NS_USER already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 14
 
Notice: Constant NS_USER_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 15
 
Notice: Constant NS_WP already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 16
 
Notice: Constant NS_WIKIPEDIA already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 17
 
Notice: Constant NS_WP_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 18
 
Notice: Constant NS_WIKIPEDIA_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 19
 
Notice: Constant NS_IMAGE already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 20
 
Notice: Constant NS_IMAGE_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 21
 
Notice: Constant NS_MEDIAWIKI already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 22
 
Notice: Constant NS_MEDIAWIKI_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 23
 
Notice: Constant NS_TEMPLATE already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 24
 
Notice: Constant NS_TEMPLATE_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 25
 
Notice: Constant NS_HELP already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 26
 
Notice: Constant NS_HELP_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 27
 
Notice: Constant NS_CATEGORY already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 28
 
Notice: Constant NS_CATEGORY_TALK already defined in /wwwapp/wiki/wiki/includes/Namespace.php on line 29
 
Fatal error: Cannot redeclare class namespace in /wwwapp/wiki/wiki/includes/Namespace.php on line 57
 
Thanks,
Best Regards
Ralf Bodamer