Tiki needs to be able to write to certain directories. If you are runing on UNIX/Linux, the easy way to do this is to run the setup.sh script. This script will create any missing directories and assign the the correct privileges.
Otherwise, you can manually ensure that PHP can write to the following directories:
Knowledgebase / tutorial / FAQ / How-to
(you can skip this section if you just want to install and use Tiki)
You can install tiki in any directory and you can name the tiki directory as you want, but you have to respect the internal directory structure of the application since Tiki relies on certain directory names to find modules, images and language files.
The directories contain the following information: