While I was learning kohana and making single article, i encountered this problem.
I wanted to get my url to look like article/post_id/slug(optional)
so I made the route.
Route::set('article', '/<controller>/<article_id>(/<article_slug>(/<id1>(/<id2>(/<id3>))))', array('article_id' => '[0-9]', 'article_slug' => '[a-zA-Z0-9_]+'))
->defaults(array(
'controller' => 'article',
'action' => 'read',
));
I even tried without 3rd parameter for Route::set
but anyway returns error shown in the picture.
Thanks. (: