procedure TfrmOpen.btnViewReportClick(Sender: TObject);
var
   strQuery : string;
   startDate, endDate : TDateTime;
begin

   strQuery := 'Select * From weight' + #13 +
               'Where DateTime > :pStartDateTime' and DateTime < :pEndDateTime';

   startDate := StrToDateTime(datetostr(dtpStartDate.Date)+ ' '+ cbStartTime.Text + ':00:00');
   EndDate := StrToDateTime(datetostr(dtpEndDate.Date)+ ' '+ cbEndTime.Text + ':00:00');
   with dm.adoQuery do begin
      sql.Clear;
      sql.Text := strQuery;
      Parameters.ParamByName('pStartDateTime').Value := startDate;
      Parameters.ParamByName('pEndDateTime').Value := endDate;
   end;

위 소스가 'pStartDateTime' /'pEndDateTime' 파라미터를 찾을수 없다고 나오네여
제발 좀 갈켜주세요