Reference Error Message

Any one know why this would pop in the console? How can I fix it?

 ReferenceError: Can't find variable: daterangepicker
 (anonymous function) — dateRangePicker.js:3
 Global Code — dateRangePicker.js:1

I am getting this as well

Where is the date picker placed - a full page or a content page?
Are the includes added in the head tags of the page?