Using _s theme, menu changes do not affect header menu

Question

I'm using the _s theme and seeing the header menu point to 'Home' and 'Sample page'.

in functions.php, we have

register_nav_menus( array(
  'primary' => __( 'Primary Menu', 'mytheme' ),
  'secondary' => __( 'Secondary Menu', 'mytheme' ),
) );

Then in header.php, we use

<?php wp_nav_menu( array( 'theme_location' => 'Primary Menu' ) ); ?>
<?php wp_nav_menu( array( 'theme_location' => 'Secondary Menu' ) ); ?>

etc.

Finally, we have created both menus in the Wordpress custom menu section and added some custom items, but they are not reflected in the site. How do we match them up?

Answer 1

You should be calling the menus by name, not description:

<?php wp_nav_menu( array( 'theme_location' => 'primary' ) ); ?>
<?php wp_nav_menu( array( 'theme_location' => 'secondary' ) ); ?>