Problème dans l'import css wordpress

Bonjour,

Cannot redeclare leanova_addstyle() (previously declared in C:\wamp64\www\leanova\wp-content\themes\leanova\functions.php:5) in C:\wamp64\www\leanova\wp-content\themes\leanova\functions.php on line 17

Ce que je fais

function leanova_addstyle() {
    wp_enqueue_style('normalize', get_bloginfo('template_directory').'/css/normalize.css');
    wp_enqueue_style('font-awesome', get_bloginfo('template_directory').'/css/font-awesome.min.css');
    wp_enqueue_style('prettyPhoto', get_bloginfo('template_directory').'/css/prettyPhoto.css');
    wp_enqueue_style('slick', get_bloginfo('template_directory').'/css/slick.css');
    wp_enqueue_style('bootstrap', get_bloginfo('template_directory').'/css/bootstrap.min.css');
    wp_enqueue_style('animate', get_bloginfo('template_directory').'/css/animate.min.css');
    wp_enqueue_style('preloader', get_bloginfo('template_directory').'/css/preloader.css');
    wp_enqueue_style('style', get_bloginfo('template_directory').'/style.css');
    wp_enqueue_style('responsive', get_bloginfo('template_directory').'/css/responsive.css');
    wp_enqueue_style('template_deux', get_bloginfo('template_directory').'/css/colors/template_deux.css');

}
add_action( 'wp_enqueue_scripts', 'leanova_addstyle' );

Merci d'avance pour votre reponse