i get this error and i don't know why, http://dpaste.com/0HTNSG7
Settings for static precompilers for css files
STATIC_PRECOMPILER_OUTPUT_DIR = 'compiled'
STATIC_PRECOMPILER_MTIME_DELAY = 1
STATIC_PRECOMPILER_COMPILERS = (
('static_precompiler.compilers.LESS', {"sourcemap_enabled": True, "executable": "/usr/bin/lessc"}),
)