Less Parser Error

[NoahTwine]

I installed sfLESSPlugin and am running into an error. If someone can put me on the right track here I'd appreciate it very much.

When I run ./symfony less:compile from within my symfony project I get the following error:

LESS parser error in "/Users/****/Sites/twine/web/less/player/main.less":
sh: lessc: command not found

Can anyone point me in the right direction here? Thank you very much.