Why doesn't the "carbon_fields_register_fields" hook work?

Question

WordPress

Installed the Carbon Fields plugin.
I registered insurance in the functions.php file

if ( ! function_exists( 'carbon_get_post_meta' ) ) {
    function carbon_get_post_meta( $id, $name, $type = null ) {
        return false;
    }   
}

Here I brought one function, in fact, I registered everything from the documentation.
Next, I wrote a hook for connecting arbitrary fields from files

add_action( 'carbon_fields_register_fields', 'crb_attach_post_options' );
function crb_attach_post_options() {
    // путь к пользовательскому файлу определения поля (полей), измените под себя
    require_once __DIR__ . '/inc/carbon-fields/home-fields.php';
}

And here is the code from the home-fields.php file, nothing special

use Carbon_Fields\Container;
use Carbon_Fields\Field;

Container::make( 'post_meta', 'Текст слайдера' )
     ->show_on_post_type('page') // этот метод можно не писать, так как show_on_post_type('post') по умолчанию
     ->show_on_page('glavnaya')
         ->add_fields(array(
             Field::make('text', 'home_slider_text_1', 'Текст слайдера')
             ->set_width(33),
             Field::make('text', 'home_slider_text_2', 'Текст слайдера')
             ->set_width(33),
             Field::make('text', 'home_slider_text_3', 'Текст слайдера')
             ->set_width(33)
         ));

So here's the problem:
If I just prescribe

require_once __DIR__ . '/inc/carbon-fields/home-fields.php';

in functions.php, then custom fields appear on the page.
If I write the path to the file in the body of the hook function, there are no fields.
It doesn't work like this.

Why?

Answer 1

Hello. Classic mistake. You appear to be using the carbon_fields_register_fields hook , but are running CF 1.6. This hook appeared in CF v 2.0. Version 1.6 had the carbon_register_fields hook .
From my own advice, download CF 2.2 as a plugin and install it, since you are just getting started. There is nothing to loose. Version 1.6 is no longer developed, it does not have much that is in 2.2.