Title: Fatal Error when customizing theme?
Last modified: August 22, 2016

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# Fatal Error when customizing theme?

 *  [BaldPunk1](https://wordpress.org/support/users/baldpunk1/)
 * (@baldpunk1)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-customizing-theme-1/)
 * I’ve tried a few different themes, and each time I try to customize it I get 
   errors.
 * Fatal error: Class ‘WP_Customize_Setting’ not found in /homepages/2/d142238593/
   htdocs/duaghhouse/wp-includes/class-wp-customize-manager.php on line 685
 * Site is DuaghHouse(dot)com
 * What could it be?
 * Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-customizing-theme-1/#post-5765626)
 * > I’ve tried a few different themes, and each time I try to customize it I get
   > errors.
 * – First off, check if your themes are compatible with WP 4.1
 * – If they are compatible, try deactivating all plugins to see if this resolves
   the problem? If this works, re-activate the plugins one by one until you find
   the problematic plugin(s).
 * – do get the same error when you try to customize the default Twenty Fifteen 
   theme?
 *  Thread Starter [BaldPunk1](https://wordpress.org/support/users/baldpunk1/)
 * (@baldpunk1)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-customizing-theme-1/#post-5765690)
 * I tried everything, including activating Twenty Fifteen and get same error.
 * Thanks,
    Joe
 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-customizing-theme-1/#post-5765697)
 * Have you tried reinstalling WP Core files manually? Download a new copy of WP
   to your local computer and then, via FTP or Cpanel, replace all files and folders**
   EXCEPT wp-config.php file and wp-content folder** with new copies. Best to delete
   the old versions before uploading the new ones to be sure they’re cleanly replaced.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Fatal Error when customizing theme?’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 3 participants
 * Last reply from: [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-when-customizing-theme-1/#post-5765697)
 * Status: not resolved

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