fixing terms counts

after moving from old site to new – wordpress site we moved many posts types using script that didnt updated the term counts.
how can we update them now?
i tries to use posts=get_posts( array(
‘post_type’ => ‘new_post”,
‘numberposts’ => -1,
‘taxonomy’ => $tax,
‘terms’ => $category->slug,
) ) with each term slug and than
wp_update_term((int)r4hn $category->term_taxonomy_id, $tax, array(
‘count’ => count(posts)
));
but its didnt work;