BuddyPress.org

Yes, try this instead. You may need to tweak it a little, but I believe it will give you the link you are looking for. You will need to add the beginning bracket “<” and the ending one “>”.

a href="<?php echo bloginfo('home'); ?>/<?php echo BP_MEMBERS_SLUG ?>/<?php the_author(); ?>"><?php bp_post_author_avatar(); ?></a