DatePicker not working in ajax loaded page

Question

I attach the datepicker to inputs in a global script file with like this:

$(document).on(\"focusin\",\".datePick\", function () {
            $(this).datepic         


        

Answer 1

I experienced this exact error, and while my answer will not help the OP, maybe it will help others in the future.

I received this error message when I had an ID clash with another element in my page.