cannot set up courses, etc

[solishu]

I have just deployed TODCM on a Centos 6.2 server and managed to install it with no errors, but now that I'm logged in as admin and trying to set it up, I find myself unable to. Whenever I try to add or edit users, courses, or departments, I get an error window that says, "Sorry, a minor conflict has been detected and the page requested cannot be displayed. This is due to having todcm running in two separate browser windows/tabs. This is a non-critical error and no data has been lost. Please continue your work on the site."

I've double and triple checked that this is the only instance of todcm running in any browser and tried to access it from several different computers using different browsers. What else could be causing this error?

[David Tong]

This sounds like your PHP session is not working; I still remember the specific code I put in for this particular warning message. Some of the admin features relies on PHP session. Please check and make sure your PHP installation supports session.

[solishu]

Had to fix the permissions on /var/lib/php/sessions but now it works.