bp Daily throws up error

I just added this to my site and tried to activate but it throws up this error

Fatal error: Cannot redeclare bp_dtheme_ajax_querystring() (previously declared in /home/*****/public_html/wp-content/plugins/buddypress/bp-themes/bp-default/_inc/ajax.php:20) in /home/****/public_html/wp-content/themes/bp-daily/_inc/ajax.php on line 63

What have I not done correctly?