Notice: Undefined property: Drupal\calendar\CalendarEvent::$date_id in Drupal\calendar\Plugin\views\style\Calendar->calendarBuildWeekDay() (line 1041 of modules/calendar/src/Plugin/views/style/Calendar.php).
Notice: Undefined property: Drupal\calendar\CalendarEvent::$date_id in Drupal\calendar\Plugin\views\style\Calendar->calendarBuildWeekDay() (line 1041 of modules/calendar/src/Plugin/views/style/Calendar.php).
