Enqueue menos arquivo que não funciona no tema filho?

No meu tema infantil, eu tenho:

add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' ); function theme_enqueue_styles() { wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' ); //Load Bootstrap and 3rd Party wp_enqueue_style( 'bootstrap', '//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css' ); wp_enqueue_style( 'fontawesome', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css' ); wp_enqueue_style( 'select2css', '//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css' ); // Load our main stylesheet. wp_enqueue_style( 'less-style', '/css/style.less' ); } 

Todas as folhas de estilos externas na carga superior corretamente, mas a menor folha de estilos causa 500 erros.

A única outra vez que fiz isso foi em um tema não-infantil e eu tive:

 function themename_scripts() { // Add custom fonts, used in the main stylesheet. wp_enqueue_style( 'themename-fonts', themename_fonts_url(), array(), null ); // Add Genericons, used in the main stylesheet. wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.2' ); //Load Bootstrap and 3rd Party wp_enqueue_style( 'themename-bootstrap', '//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css', array( 'themename-style' ), '20141010' ); wp_enqueue_style( 'themename-fontawesome', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', array( 'themename-style' ), '20141010' ); wp_enqueue_style( 'themename-select2', '//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css', array( 'themename-style' ), '20141010' ); // Load our main stylesheet. wp_enqueue_style( 'themename-style', get_stylesheet_uri() ); wp_enqueue_style( 'less-style', get_template_directory_uri() . '/css/style.less' ); } add_action( 'wp_enqueue_scripts', 'themename_scripts' ); 

E isso funcionou bem quando não era um tema infantil. O que estou faltando no tema infantil no topo?

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