This is in the template file: function add_pt_style() { wp_enqueue_style ('pt-style', ROOT_PATH.'/pt.css', array(), '1.0.0'); } add_action( 'wp_enqueue_scripts', 'add_pt_style' ); get_header(); Here are my files: [![enter image description here][2]][2] Here is the error: [![enter image description here][3]][3] [1]: https://i.sstatic.net/AiRje.png [2]: https://i.sstatic.net/AziX8.png [3]: https://i.sstatic.net/XTI2x.png I cannot figure out why it's not found.