I was having trouble getting LESS CSS (website here) configured properly in a project using Symfony2. Who better to ask for help than the man who wrote Assetic? So, i pinged Kris Wallsmith on IRC. He helped me out and asked me if I would write up a little post about how to correctly configure and use LESS within a Symfony 2 project and a Twig template. In order for the LessFilter to work you must