Title: Couldn’t load tree:undefined error
Last modified: December 8, 2016

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# Couldn’t load tree:undefined error

 *  [Dz4c](https://wordpress.org/support/users/dz4c/)
 * (@dz4c)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/couldnt-load-treeundefined-error/)
 * Hi there,
 * I am having this error show up when I try to view Pages from the main dashboard
   menu.
 * Couldn’t load tree : undefined.
 * The loading/thinking wheel just keeps turning and turning while this error pops
   up on the screen and I can’t edit ANY of my pages?
 * Any help is greatly, greatly appreciated!

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

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/couldnt-load-treeundefined-error/#post-8530196)
 * Try:
    – switching to the default theme automatically by renaming your current
   theme’s folder inside wp-content/themes and adding “-old” to the end of the folder
   name using [FTP](http://codex.wordpress.org/FTP_Clients) or whatever file management
   application your host provides.
 * – [resetting the plugins folder](http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)
   by FTP or phpMyAdmin.
 * – re-uploading all files & folders – **except** the wp-content folder and the
   wp-config.php & root .htaccess files – from a **fresh** download of WordPress.
   Make sure that you delete the old copies of files & folder before uploading the
   new ones.
 * – running the upgrade manually via wp-admin/upgrade.php
 *  Thread Starter [Dz4c](https://wordpress.org/support/users/dz4c/)
 * (@dz4c)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/couldnt-load-treeundefined-error/#post-8532692)
 * Hi there,
 * Thank you for your reply. I was under the impression that the plugins were all
   reset by someone else, but alas they were not.
 * The culprit was the Simple 301 Redirects plugin.
 * The pages have all returned 🙂
 * Thanks again, I really appreciate your efforts.

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

The topic ‘Couldn’t load tree:undefined error’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [Dz4c](https://wordpress.org/support/users/dz4c/)
 * Last activity: [9 years, 3 months ago](https://wordpress.org/support/topic/couldnt-load-treeundefined-error/#post-8532692)
 * Status: not resolved

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