Notice: Theme without comments.php is deprecated since version 3.0 with no alter,

[daslicht]

WP 4.4
I have the following location for my comments.php:

/template_parts/_includes/comments.php

When I include it like this:

comments_template('template_parts/_includes/comments.php')

The comments get displayed but I get the notice:

Notice: Theme without comments.php is deprecated since version 3.0 with no alter

I even tried adding a dummy comments.php to the root of the theme but i still get that notice.

why?

[daslicht]

The notice is gone If I add a absolute path like this:

comments_template('/template_parts/_includes/comments.php')

The docs say we should add a relative path.