BuddyPress.org

Here’s a writeup I made awhile back:

https://buddypress.org/forums/topic/bp-admin-bar-on-bbpress-front-page-1#post-18626

For the require_once line, if that line doesn’t work change it to the absolute file path.

If you’re using single WP, delete these lines:

bp_adminbar_blogs_menu();

bp_adminbar_authors_menu();