I have set up DokuWiki a couple of times before without encountering any problems. However, today after installing it on a somewhat intransparently configured server at my university I got the following error message after the installation:
data/cache/word.idx is not writable. Check your permissions settings!
Funny enough, the permissions on data are all set correctly, but the mentioned file "word.idx" doesn't exist. In data/cache I find only a file called "dummy".
So, does anyone have an idea what went wrong?