Title: Fatal error: Class not found
Last modified: August 30, 2016

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# Fatal error: Class not found

 *  [foolrulescool](https://wordpress.org/support/users/foolrulescool/)
 * (@foolrulescool)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-class-not-found-4/)
 * I have installed my theme on server but I get class Fatal error: Class ‘XYZ’ 
   not found in ‘PQR.php’ file at line 2 when clicked on the Menupage ( I have named
   it ‘Addinfo’) which was added by using add_menu_page() function.
 * Other information:
 * I have a list table in the ‘Addinfo’ which is done by extending file in my project
   which has WP_List_Table(class is renamed in my file.)
 * I have added below lines in wp-config.php hence i get to see the above mentioned
   error in dashboard when clicked on ‘Addinfo’.
 * `
    ini_set('log_errors',TRUE); ini_set('error_reporting', E_ALL); ini_set('error_log',
   dirname(__FILE__) . '/error_log.txt');
 * If I remove these lines then I get 500 inernal error and it says ‘ There is a
   problem with the resource you are looking for, and it cannot be displayed.’
 * My server runs php version 5.4.45 version . local has 5.5.15
    Wordpress on server
   is 4.3.1 and local it is 4.3
 * I used require_once to include the files whereever required in my project.
 * It seems like I have added my classes and files correctly to extend the classes
   but still the class is not found. Does the sequence matter while using require_once?
 * Can anyone help me with this or give me a clue?
 * Sorry..I m pretty new to wordpress and php stuff.. Help appreciated!.

Viewing 1 replies (of 1 total)

 *  Moderator [Marius L. J.](https://wordpress.org/support/users/clorith/)
 * (@clorith)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-class-not-found-4/#post-6563016)
 * Hi,
 * The sequence matters, since you can’t extend a class that doesn’t exist yet.
 * You also need to manually include the WP_List_Table class file (it’s not added
   to the pages automatically), I don’t know your code, so I’m guessing this is 
   what’s causing the error for you.
 * At the start of my table-controller.php file I use this:
 *     ```
       if ( ! class_exists( 'WP_List_table' ) ) {
       	require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
       }
       ```
   
 * Which is how I pull in the class it self and after this I have my class extender.
 * If this isn’t what your error is relating too, please pastebin your code so we
   can have a look, and pleas use the actual error message without replacing names
   with ‘XYZ’ and such 🙂

Viewing 1 replies (of 1 total)

The topic ‘Fatal error: Class not found’ is closed to new replies.

## Tags

 * [class](https://wordpress.org/support/topic-tag/class/)
 * [fatal](https://wordpress.org/support/topic-tag/fatal/)
 * [found](https://wordpress.org/support/topic-tag/found/)
 * [list](https://wordpress.org/support/topic-tag/list/)
 * [not](https://wordpress.org/support/topic-tag/not/)
 * [table](https://wordpress.org/support/topic-tag/table/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [Marius L. J.](https://wordpress.org/support/users/clorith/)
 * Last activity: [10 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-class-not-found-4/#post-6563016)
 * Status: not resolved

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