Comments on: “jQuery is not defined” WordPress Error Fix

By: Micha

Micha — Sat, 26 Jun 2010 11:26:55 +0000

Wow, absolutely great hint! That was the problem at one of my blogs, too! Thank you very much! Now first I have to take a shower to cool down. :)

By: Mufaddal

Mufaddal — Tue, 01 Jun 2010 02:05:01 +0000

@omar can you paste your link here where you facing error or a code snip to get this working.

By: omer

omer — Mon, 31 May 2010 17:27:50 +0000

None of the solutions worked for me, jquery is not working in my frontend

By: HoneyBee

HoneyBee — Sun, 07 Feb 2010 17:12:35 +0000

How do I re upload wp-includes\js please?

By: Bob Weber

Bob Weber — Sun, 06 Dec 2009 01:00:09 +0000

I was having the same problem. Mine had to do with permissions on the .htaccess file. I’m not 100% sure why that fixed it, but the permissions were wrong, I set them to 666 and my JQuery error went away.

By: Gary

Gary — Thu, 15 Oct 2009 01:25:56 +0000

I had a nice ajax slideshow (jd slideshow) working on my site until I installed some new ajax plugins. I don’t know which one broke the slideshow. I didn’t notice until later.

I de-activated the new plugins.
I re-uploaded the wp-includes/js folder contents but slideshow still broken.

Firefox error console lists jQuery not defined and addLoadEvent not defined.
The addLoadEvent is what starts the slideshow. No other errors.

All the other wp functions are still working fine.