Title: Uncaught ReferenceError: plupload is not defined
Last modified: July 10, 2019

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# Uncaught ReferenceError: plupload is not defined

 *  [rashidhussain](https://wordpress.org/support/users/rashidhussain/)
 * (@rashidhussain)
 * [7 years ago](https://wordpress.org/support/topic/uncaught-referenceerror-plupload-is-not-defined/)
 * I am getting this error when I try to upload new image,already i installed w3
   total cache plugin then i uninstalled that plugin, now media upload UI not working
   properly, like uploads file-> select files button not working.
 * plupload.full.min.js:1 Failed to load resource: the server responded with a status
   of 404 (Not Found)
 * Failed to load resource: the server responded with a status of 404 (Not Found)
   
   jquery.js?ver=1.12.4:3
 * The specified value “!” does not conform to the required format. The format is“#
   rrggbb” where rr, gg, bb are two-digit hexadecimal numbers.
 * Uncaught ReferenceError: plupload is not defined
    at new c (wp-plupload.min.js?
   ver=5.1:1) at n.ready (media-views.min.js?ver=5.1:4) at _ (backbone.min.js?ver
   =1.2.3:1) at m (backbone.min.js?ver=1.2.3:1) at f (backbone.min.js?ver=1.2.3:
   1) at n.u.trigger (backbone.min.js?ver=1.2.3:1) at wp.Backbone.Subviews.ready(
   wp-backbone.min.js?ver=5.1:1) at underscore.min.js?ver=1.8.3:5 at Function.m.
   map.m.collect (underscore.min.js?ver=1.8.3:5) at Function.m.invoke (underscore.
   min.js?ver=1.8.3:5)

Viewing 1 replies (of 1 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [7 years ago](https://wordpress.org/support/topic/uncaught-referenceerror-plupload-is-not-defined/#post-11719246)
 * >  i installed w3 total cache plugin then i uninstalled that plugin, now media
   > upload UI not working properly, like uploads file
 * For the W3TC problem, I recommend reporting it at [https://wordpress.org/support/plugin/w3-total-cache](https://wordpress.org/support/plugin/w3-total-cache)
   so the plugin’s developers and support community can help you with this.

Viewing 1 replies (of 1 total)

The topic ‘Uncaught ReferenceError: plupload is not defined’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [t-p](https://wordpress.org/support/users/t-p/)
 * Last activity: [7 years ago](https://wordpress.org/support/topic/uncaught-referenceerror-plupload-is-not-defined/#post-11719246)
 * Status: not resolved

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