I try these two components for CB separately.
After sucessful installtion, I found a mistake when I want to enter the "Event Lists->Sessions"(Or Attend Events->Sessions), il displayed

DB function failed with error number 1054
Unknown column 's.startdate' in 'field list' SQL=select s.session_id, s.title, s.startdate, s.enddate, s.minregistrations, s.maxregistrations, s.status, s.availability, s.published, s.checked_out, u.name as editor from m_events_sessions s left join m_users u on (s.checked_out=u.id) where s.published>=0 order by 2 limit 0, 30.

Any idea? I am a newbie of Joomla, so can some one explain a little detailly how to solved this problem??