Register Taxonomies For Post Types

register-objects-for-post-type.php

<?php

/*-----------------------------------------------------------------------------------*/
/* Register Taxes for Post Types
/*-----------------------------------------------------------------------------------*/
function run_init() {

  register_taxonomy_for_object_type('category', 'tribe_events');
  register_taxonomy_for_object_type('post_tag', 'tribe_events');
  register_taxonomy_for_object_type('tribe_events_cat', 'post');

}
add_action('init','run_init');