SQL error: Unknown table 'event_repeat'

When viewing a page using a View with the filter: Event Repeat: Distinct Events, I receive the following error (or a variant thereof, depending on the complexity of the view):

user warning: Unknown table 'event_repeat' in group statement query: SELECT node.nid FROM node node GROUP BY event_repeat.rid LIMIT 0, 10 in /home/MY/DRUPAL/DIRECTORYincludes/database.mysql.inc on line 172.

BrandTim