Title: Update error
Last modified: February 19, 2018

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# Update error

 *  Resolved [rmixr](https://wordpress.org/support/users/rmixr/)
 * (@rmixr)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/update-error-66/)
 * Hi,
    I’ve made an upgrade of my installed version (3.0.6) to the last one (3.3.35)
   and my gallery show me some errors messages : Warning: call_user_func() expects
   parameter 1 to be a valid callback, class ‘‘WP_Image_Editor_GD’’ not found in/
   var/www/html/wp-includes/media.php on line 2965 Warning: call_user_func() expects
   parameter 1 to be a valid callback, class ‘‘WP_Image_Editor_Imagick’’ not found
   in /var/www/html/wp-includes/media.php on line 2965
 * for each image !?
    Any idea ?
 * Thanks.

Viewing 1 replies (of 1 total)

 *  Thread Starter [rmixr](https://wordpress.org/support/users/rmixr/)
 * (@rmixr)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/update-error-66/#post-10509252)
 * Due to a syntaxe error in functions.php for :
    function change_graphic_lib($array){
   return array(‘WP_Image_Editor_GD’, ‘WP_Image_Editor_Imagick’); }
 * Nothing wrong with the plugin.
 * Solved !

Viewing 1 replies (of 1 total)

The topic ‘Update error’ is closed to new replies.

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 * 1 reply
 * 1 participant
 * Last reply from: [rmixr](https://wordpress.org/support/users/rmixr/)
 * Last activity: [8 years, 1 month ago](https://wordpress.org/support/topic/update-error-66/#post-10509252)
 * Status: resolved