I am getting this error

22-Apr-2012 03:18:04 UTC] PHP Warning: require(includes/templates/template_default/templates/tpl_404_default.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /includes/templates/abbiamo_supremo/common/tpl_main_page.php on line 126

Do I just make up a tpl_404_default.php file?