eckayech(a)engmail.uwaterloo.ca wrote:
Could someone please give me some guidance as to what
to check, based
on the error message? I don't know what specifically to look for, to
see that the installation of the modules is correct. Also, I don't
have shell access to the server, so I would have to ask the
webhosting company to check for me, and I would like to know what
specific steps to ask them to do. The webhosting company tells me
that the modules are installed.
Are there some settings within the MediaWiki software that tells the
software where the modules are installed? If so, where are they?
Maybe they are set incorrectly.
The following commands must be available in the default execution path
(PATH environment variable):
latex
dvips
convert
gs
and anything else that they depend on that I might not know about. In
particular ask that dvips is installed, since you didn't mention that
earlier.
You can write a quickie PHP script to look around, like this:
<?php
header("Content-type: text/plain");
echo "dvips is at: ";
system("which dvips");
?>
It should come back with a pathname like "/usr/bin/dvips". If it says
nothing, then it may be missing.
I checked the permissions on the images/math and
images/tmp
directories and set them to allow reading, writing and executing by
everyone. Also, I noticed that in the images/tmp directory, there
are a bunch of files with .tex extensions and that there is nothing
in the images/math directory.
Also ask your provider for access to the Apache and PHP error logs (or
at least to look to see if anything relevant is showing).
-- brion vibber (brion @
pobox.com)