BlockUI throws " has no method 'blockUI' " error when blocking specific DIV

Question

I've been using BlockUI to block the whole page, and it has been working fine like this:

$.blockUI()

but when I try to block a specific DIV (following Block UI Jquery plugin for a specific DIV ) like this

$('#my-div').blockUI()

It throws this error:

TypeError: Object [object Object] has no method 'blockUI'

I thought maybe it's a conflict with jquery's $ so I changed the $ to J with noConflict like this

var j = jQuery.noConflict(true);
...
j.blockUI();              // <--- this one works
j('#my-div').blockUI();   // <--- this one doesn't work
$.blockUI();              // <--- this one doesn't work, so $ is not used

So this rules out a jQuery conflict. So any idea what is causing this?

Thanks!!!

Answer 1

The documentation says that the syntax for blocking a single element is just block not blockUI

Try

$("#my-div").block();