Hello,
Where are you exactly getting this error message, and how are you trying to run it? You do also know that Ubuntu comes with a front end to iptables, correct? You don't need to install firestarter, it is a waste. Perform the following:
Code:
sudo apt-get install gufw
Also as a reference if needed, here you go -
http://ubuntuforums.org/showthread.php?p=10777571
Cheers,
Josh