jQuery UI - Draggable is not a function?

Question

I\'ve trying to use the draggable effect on some divs on a page, but whenever I load the page, I get the error message:

Error: $(\".draggable\").draggable is         


        

Answer 1

This issue can also be caused if you include the normal jquery library twice. I had the following line twice, in my body and head.

It never caused any problems until I tried to use jquery UI as well.