Cache file is empty, url not contains path to scripts and css files

[cyberz]

Code from my header view:

load->helper('assets'); $assets = array( 'main.css', 'theme/theme_style.css', ); add_assets($assets); echo get_assets(); ?>

it dishaply:

----------------- My directories structure: --------------- application public_html ...|_assets .......|_cache/604016905a30921163fced20a4d75f87.css --cache file forever is empty !!! .......|_css/main.css, ............|_theme/theme_style.css system etc.. ------------------------ my config: --------------------------- $config['script_dirs'] = array('js/'); $config['style_dirs'] = array('css/'); $config['cache_dir'] = 'assets/cache/'; $config['combine_css'] = TRUE; $config['minify_css'] = TRUE; $config['combine_js'] = TRUE; $config['minify_js'] = TRUE; $config['auto_update'] = TRUE; $config['static_cache'] = FALSE;