How do I setup the date picker popup for date fields in a view? I setup a date field for my content type and also have an exposed date filter for my view, but I can't seem to figure out how to get the date picker popup to show up. Is there a setting that I have to set somewhere? 

I've also installed Better Exposed Filters and I still don't see any option for my view. Also installed Date and the Calendar module. I know jQuery UI has a built in calendar popup and that's installed by default on Drupal 8 installs. 

How do I turn this on?
This is usually because the ui.datepicker wasn't added as a dependency in your theme as this isn't usually enabled by default in themes. 

I use the seven theme for administration, so I had to add the line: 

  - core/jquery.ui.datepicker


Looks like this in my seven.libraries.yml file: