Menu not adding the right items

Question

I created a menu that includes all the different product categories. Yet the menu displays:

• Blog
• Cart
• Account
• Shop
• etc..

It does not display the product categories, just those titles. I have no plugins except for WooCommerce.

The code I used to add the menu is within the functions.php:

    function register_my_menus() {
       register_nav_menus(
       array(  
         'header_navigation' => __( 'nav' )
        )
      );
    } 
    add_action( 'init', 'register_my_menus' );

And in my index.php:

<?php 
wp_nav_menu(array(
    'theme_location' => 'nav', 
    'container' => false, 
    'menu_class' => 'nav', 
));
?>

And through the admin panel I created a menu and called it nav. Then added the product categories.

Answer 1

You've defined your menu location as header_navigation. Use the menu location slug header_navigation in your call to wp_nav_menu(), not the description (nav):

wp_nav_menu(array(
    'theme_location' => 'header_navigation', 
    'container' => false, 
    'menu_class' => 'nav', 
));