I'm using Ubuntu 14.04 LTS and XAMPP 1.8.3-5
When I started phpMyAdmin, I've got this:
"Error during session start; please check your PHP and/or webserver log file and configure your PHP installation properly. Also ensure that cookies are enabled in your browser."
I did lots of suggestions but nothing worked for me.
Thanks God, I've found "Josef vM" recommendation.
So I made "Session" folder in this directory:
/opt/lampp/php/ (sudo mkdir Session)
sudo mkdir /opt/lampp/php/Session
My problem solved just like a piece of cake.