post list of categories

had to use this: https://codex.www.ads-software.com/Template_Tags/wp_list_categories

??

Simply trying to list some categories. This won’t work:

<ul>[terms]
<li>
[term_name]
</li>
[/terms]
</ul>

Error in twenty-fourteen theme:
Warning: in_array() expects parameter 2 to be array
wp-content\themes\twentyfourteen\inc\featured-content.php on line 313

Works out if 313 is commented out.