I had TikiWiki v2.2 installed and running fine on my website.
I used cpanel + Fantastico to automatically upgrade from v2.0 to v3.0. I followed the Fantastico on-screen instructions and when the update had finished I clicked on the "View site" link and got the following error:
Fatal error: Cannot redeclare class Zend_Filter_Interface in /usr/lib/php/Zend/Filter/Interface.php on line 30
I tried to do a brand new install of TikiWiki on another website that has never had a previous version of TikiWiki on it using cpanel + Fantastico. I followed the on-screen instructions and when I clicked on the "View site" link I got the same fatal error message.
I then installed TikiWiki v3.0 on my Ubuntu v8.04 desktop localhost Apache2 server and it works fine.
Then I installed TikiWiki v3.0 on my Windows Vista Ultimate laptop localhost Apache2 server and it works fine.
Two local installations of TikiWiki v3.0 work fine. The two attempts at using cpanel + Fantastico on remote servers both yield the same fatal error. One website had a previously installed version of TikiWiki (v2.2). The other website had never had TikiWiki installed.
fixed for 3.4 and 4.1
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=23360
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=23362
To help developers solve the bug, we kindly request that you demonstrate your bug on a show2.tiki.org instance. To start, simply select a version and click on "Create show2.tiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show2.tiki.org.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show.tikiwiki.org instance. To start, simply select a version and click on "Create show.tikiwiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show.tikiwiki.org.