I get the above message with the following sql statement:

  SELECT MAX(trackrcd.date), ALLTRIM(trackrcd.t_s_num) FROM trackrcd ;
	WHERE ALLTRIM(trackrcd.client_id) == thisform.idclient AND;
	ALLTRIM(trackrcd.prjt_num) == thisform.idproj AND ;
	ALLTRIM(trackrcd.task_num) == thisform.idtask ;
	INTO ARRAY datearray

Anyone know why? This is not a group by situation.