Thanks for submitting a ticket to the jQuery bug tracker! Unfortunately, we're unable to assist with issues related to third party plugins. In such cases, we recommend contacting the author of the plugins you're using directly.

Its unclear whether you wrote the plugin you are using yourself or not, but if you are the original author, we ask that you resubmit your ticket with a test case on jsFiddle.net that reproduces the issue experienced. The code sample supplied appears to be somewhat minified, and is as such difficult to decipher without a broader test case around it.

I'd like to ask that this be reopened. The animate step function is checking the jQuery easing methods for the name of the css property being modified instead of the easing function name.

Example:

http://jsfiddle.net/HMmfZ/

Workaround:

I am able to get it to work by changing this line in the core(8422) from:

this.pos = jQuery.easing[ options.animatedProperties[ this.prop ] ]( this.state, n, 0, 1, options.duration );

to:

this.pos = jQuery.easing[ options.animatedProperties.easing[ this.prop ] ]( this.state, n, 0, 1, options.duration );

Sorry, my workaround was incorrect. The correct workaround code should be:

this.pos = jQuery.easing[ options.animatedProperties[ this.prop ].easing ]( this.state, n, 0, 1, options.duration );

I'm getting this same error with other jQuery plug-ins, like lavalamp. Unfortunately your code fix didn't resolve the original error:

jQuery.easing[options.animatedProperties[this.prop]] is not a function

A problem with jQuery Easing Plugin

This error occurs when a newer version of jquery and jquery.easing is used with an older version of the call to animate.easing.

Read more about the problem and it's fix here:

http://blog.m1m1k.com/?p=154

I would really love to "read more about the problem and it's fix", but that url is no longer reachable. Any currently valid reference available?

Cache of the page is here: http://webcache.googleusercontent.com/search?q=cache:ot5eLt8rNq0J:blog.m1m1k.com/%3Fp%3D154+&cd=1&hl=en&ct=clnk&gl=us

Solution did not help me

Please visit this site. It has the detailed explanation

http://dmadan.wordpress.com/2011/11/02/e-animatedproperties-is-undefined/

Replying to [comment:5 webmaster@…]:

A problem with jQuery Easing Plugin This error occurs when a newer version of jquery and jquery.easing is used with an older version of the call to animate.easing. Read more about the problem and it's fix here: http://blog.m1m1k.com/?p=154

This link not working. Can you please add the fix here or update the link please

till not getting soln

Weird;

my Chrome Developer Tools keeps bringing me to line 18 of jquery.js?v=2.0.18.4

j: "X-Requested-With" in red, for the following code:

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and I think it's making my page freeze too...

Ignore me I figured it out; it was freezing me because I had a breakpoint enabled in the Dev tools.

Good chat.

maybe the code is incorrect cuz not existe no sense in your code, try change the part in the 'this.pushStack' to destroy the ocurred error.