Notice: Undefined index: display_price in uc_taxes_entity_view_alter()

I get this error whenever I am looking at a room page.

    Notice: Undefined index: display_price in uc_taxes_entity_view_alter() (line 114 of /homepages/11/d1108/htdocs/www_grillsforrent_com/Drupal02/sites/all/modules/ubercart/uc_taxes/uc_taxes.module).

    Notice: Undefined index: #value in uc_taxes_entity_view_alter() (line 114 of /homepages/11/d1108/htdocs/www_grillsforrent_com/Drupal02/sites/all/modules/ubercart/uc_taxes/uc_taxes.module).

The following work around was posted in issue #1250840: Tax errors when uc_hotel is installed, but it does not say which file so I have not been able to test it.

   //this is for uc_cart errors
    $row->sell_price = $row->cost = $row->weight = $row->shippable = $row->weight_units = FALSE;

I do not see this issue directly addressed in the uc_hotel issues list even though it is mentioned in this issue #1209392: Editing Availability Calendar.

Thanks in advance...