@nahin if you want to install BP in a subsite, then add the following to your wp-config.php file (at root of your WP installation)
define ( ‘BP_ROOT_BLOG’, 3 );
change the number 3 above to the ID of subsite
@nahin This happens when you have a multisite installation and you activate BuddyPress in subsite’s admin and not network-wide in Network Admin > Plugins. Is this the case with your installation?
@nahin active 3 years, 3 months ago