Uncaught TypeError: $(...).dialog is not a function error in jQuery3.3.1

Uncaught TypeError: $(...).dialog is not a function error in jQuery3.3.1

Hi JAKE,

I have the following error appearing in my page using jQuery 3.3.1

  1. Uncaught TypeError: $(...).dialog is not a function
  2.     at <anonymous>:1:14
  3.     at m (jquery.min.js)
  4.     at Re (jquery.min.js)
  5.     at jQuery.fn.init.append (jquery-3.3.1.min.js)
  6.     at jQuery.fn.init.<anonymous> (jquery-3.3.1.min.js)
  7.     at z (jquery-3.3.1.min.js)
  8.     at jQuery.fn.init.html (jquery-3.3.1.min.js)
  9.     at Object.<anonymous> (jquery-3.3.1.min.js)
  10.     at u (jquery-3.3.1.min.js?
  11.     at Object.fireWith [as resolveWith] (jquery-3.3.1.min.js)

What do you think it will be? Should I change something?

Thanks!