I enable [the calendar module][1], then "Add view from template" on /admin/structure/views/add-template, but I cannot count nodes published at the same day in the month view by following [this tutorial][2].


  [1]: https://www.drupal.org/project/calendar
  [2]: https://drupal.stackexchange.com/questions/20705/count-results-in-views-using-aggregation