links Slick jS library using wp_enqueue_scripts not pulling

The error in the console should also show the URL that it’s attempting to load. If you look at that you should see that it’s attempting to load from the parent theme, but you’re presumably trying to load it from the child theme.

The issue is that you’re using get_template_directory_uri(), which gets the URL to the parent theme. To get the URL to the child theme you need to use get_stylesheet_directory_uri().

That being said, the better functions to use these days are actually get_parent_theme_file_uri() and get_theme_file_uri(). The latter is what you want to use in this case:

add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );
function my_theme_enqueue_styles() {
    wp_register_style( 'slick-css', get_theme_file_uri( 'assets/src/library/css/slick.css' ) );
    wp_register_style( 'slick-theme-css', get_theme_file_uri( 'assets/src/library/css/slick-theme.css' ) );
    wp_enqueue_script( 'jquery-min-js', get_theme_file_uri( 'assets/src/library/js/jquery-1.11.0.min.js' ), array(), '1.11.0' );
    wp_enqueue_script( 'slick-min-js', get_theme_file_uri( 'assets/src/library/js/slick.min.js' ) );

    // Enqueue all CSS & JS files
    wp_enqueue_style( 'slick-css' );
    wp_enqueue_style( 'slick-theme-css' );
    wp_enqueue_script( 'jquery-min-js' );
    wp_enqueue_script( 'slick-min-js' );
    wp_enqueue_script( 'myscript-js' );
}