Title: JavaScript error in 2.2.1, can’t edit post
Last modified: November 15, 2019

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# JavaScript error in 2.2.1, can’t edit post

 *  [Adrian Mörchen](https://wordpress.org/support/users/adrian2k7/)
 * (@adrian2k7)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/javascript-error-in-2-2-1-cant-edit-post/)
 * Hello,
 * Error in 2.2.1, is working in 2.1.0
 * This happens, when we try to edit a post with Classic Editor.
 *     ```
       Uncaught TypeError: Cannot read property 'attributes' of undefined
           at h.Model.handleFilters (admin-media.js?ver=2.2.1:398)
           at p (backbone.min.js?ver=1.4.0:1)
           at f (backbone.min.js?ver=1.4.0:1)
           at l (backbone.min.js?ver=1.4.0:1)
           at h.Model.n.trigger (backbone.min.js?ver=1.4.0:1)
           at h.Model.set (backbone.min.js?ver=1.4.0:1)
           at initialize (media.js?ver=4.8.5:96)
           at i.h.View (backbone.min.js?ver=1.4.0:1)
           at i [as constructor] (backbone.min.js?ver=1.4.0:1)
           at new i (backbone.min.js?ver=1.4.0:1)
       ```
   
 * Thank you

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [arqlinks](https://wordpress.org/support/users/arqlinks/)
 * (@arqlinks)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/javascript-error-in-2-2-1-cant-edit-post/#post-12140554)
 * Me too. On my website it happens when you want to add images to the gallery:
 * Uncaught TypeError: Cannot convert undefined or null to object
    at g.cleanup (
   backbone.min.js?ver=1.4.0:1) at g.off (backbone.min.js?ver=1.4.0:1) at r (backbone.
   min.js?ver=1.4.0:1) at l (backbone.min.js?ver=1.4.0:1) at h.Collection.n.off (
   backbone.min.js?ver=1.4.0:1) at i.<computed> [as off] (media-views.min.js?ver
   =5.3:1) at i.dispose (media-views.min.js?ver=5.3:1) at i.dispose (media-views.
   min.js?ver=5.3:1) at i.remove (media-views.min.js?ver=5.3:1) at underscore.min.
   js?ver=1.8.3:1
 *  Plugin Author [dFactory](https://wordpress.org/support/users/dfactory/)
 * (@dfactory)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/javascript-error-in-2-2-1-cant-edit-post/#post-12174236)
 * Should be working fine in 2.2.2

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘JavaScript error in 2.2.1, can’t edit post’ is closed to new replies.

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## Tags

 * [backbone](https://wordpress.org/support/topic-tag/backbone/)
 * [underscore](https://wordpress.org/support/topic-tag/underscore/)

 * 2 replies
 * 3 participants
 * Last reply from: [dFactory](https://wordpress.org/support/users/dfactory/)
 * Last activity: [6 years, 6 months ago](https://wordpress.org/support/topic/javascript-error-in-2-2-1-cant-edit-post/#post-12174236)
 * Status: not resolved