Title: Sidebar.php Fatal Error
Last modified: August 19, 2016

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# Sidebar.php Fatal Error

 *  [andrewj60](https://wordpress.org/support/users/andrewj60/)
 * (@andrewj60)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/sidebarphp-fatal-error/)
 * Hi,
    After attempting to add Adsense to the sidebar.php I received the following
   error:
 * Fatal error: Call to undefined function: wp_list_categories() in /home/search/
   public_html/blog/wordpress/wp-content/themes/default/sidebar.php on line 54
 * I then attempted to correct sidebar.php by removing the adsense code but the 
   error remains. I also replaced sidebar.php with a copy from the download file
   but the error remains.
    All help would be appreciated. Thank you.

The topic ‘Sidebar.php Fatal Error’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [andrewj60](https://wordpress.org/support/users/andrewj60/)
 * Last activity: [18 years, 5 months ago](https://wordpress.org/support/topic/sidebarphp-fatal-error/)
 * Status: not resolved

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