jQuery: PrettyPhoto in Bootstrap isn't working-Collection of common programming errors

i hope someone of you can help me, i cant get the PrettyPhoto script works in my page, here is my code.

Then my html

And for last above the end of the < /body>

       

        
$(document).ready(function(){
  $("a[rel^='prettyPhoto']").prettyPhoto();
});

Also in console i get this error.

Uncaught TypeError: Property ‘$’ of object [object Object] is not a function index3.html:318 (anonymous function)

But doesnt works, thx for your time xD

Originally posted 2013-11-13 09:49:42.