[Mediawiki-l] Error while upgrading from MediaWiki 1.6.8 to 1.13.2

[bl at vitronic.com]

Hello,

I want to upgrade my MediaWiki from 1.6.8 to 1.13.2. SpecialPage "Version" says:

    * MediaWiki: 1.6.8
    * PHP: 5.2.0-8+etch13 (apache2handler)
    * MySQL: 5.0.45-community-nt
    * Extensions:
          o Special pages:
                + PPP (version 2.1b) by Paweł Wilk, Fabian Schmitt 
          o Parser hooks:
                + PPP (version 2.0b) by Fabian Schmitt, Paweł Wilk 
          o Extension functions:
                + wfPageProtection and (SetupSpecialPage, setup) 
          o Parser extension tags:
                + <protect> 
    * Hooks:
          o AlternateEdit: protectedEdit
          o ArticleSave: protectSave 


When running the update.php script in the shell I receive the following error message:

  bl at virtual-wiki-server:/var/www/wiki/maintenance$ php update.php


  Warning: in_array(): Wrong datatype for second argument in /var/www/wiki/includes/Setup.php on line 207

  Warning: in_array(): Wrong datatype for second argument in /var/www/wiki/includes/Setup.php on line 209

  Fatal error: Call to undefined method WebRequest::interpolateTitle() in /var/www/wiki/includes/Setup.php on line 239


Also an LDAP-Extension (http://www.mediawiki.org/wiki/Extension:LDAP_Authentication) is installed (btw: why isn't this extension listed in special:version?)


Can anybody advice, what to do to run the upgrade?


Thank you in advance,

kind regards,

Frank