[DFBM - Register CPT]

functions.php

<?php

// This is the right way to register your taxonomies to work fine with DFBM

function register_my_cpt()
{

	$args = array(
		'label' => 'Example CPT',
		'public' => true,
		'show_ui' => true,
		'capability_type' => 'post',
		'hierarchical' => false,
		'rewrite' => array('slug' => 'example-cpt'),
		'query_var' => true,
		'menu_icon' => 'dashicons-video-alt',
		'supports' => array(
		'thumbnail','title', 'editor', 'excerpt','author', 'revisions', 'custom-fields',),
	);

	register_post_type( 'example-cpt', $args );

} // end register_my_cpt

register_my_cpt();

register_taxonomy(
	'example-cpt-cat', // "cat" must anywhere be included in your slug
	array( 'example-cpt' ),
	array(
		'hierarchical' => true,
		'label' => 'Categories',
		'singular_label' => 'Category',
		'rewrite' => array( 'slug' => 'example-cpt', 'with_front'=> false )
	)
);

register_taxonomy(
	'example-cpt-tag', // "tag" must anywhere be included in your slug
	array( 'example-cpt' ),
	array(
		'hierarchical' => false,
		'label' => 'Tags',
		'singular_label' => 'Tag',
		'rewrite' => array( 'slug' => 'example-cpt', 'with_front'=> false )
	)
);

// More infos: https://codex.wordpress.org/Function_Reference/register_taxonomy