Title: Errors after upgrade
Last modified: August 18, 2016

---

# Errors after upgrade

 *  [BJ05](https://wordpress.org/support/users/bj05/)
 * (@bj05)
 * [19 years, 1 month ago](https://wordpress.org/support/topic/errors-after-upgrade/)
 * Just upgraded to the latest release of WP and am getting errors out the ying 
   yang, dependent on what theme I am using. The default theme is the only one which
   seems error free.
 * Using the theme I had originally, I receive this error which blanks most of the
   page
    `Fatal error: Call to undefined function: wp_list_cats() in /home/fronter/
   public_html/mexicoverdad/wp-content/themes/wp-magapress/sidebar.php on line 13`
 * Or this in a different theme
    `Fatal error: Call to undefined function: wp_list_cats()
   in /home/fronter/public_html/mexicoverdad/wp-content/themes/kiwicanvas/plugins/
   wp_list_cats.php on line 7`
 * And still in a third theme this comes up
 *     ```
       Fatal error: Call to undefined function: get_archives() in /home/fronter/public_html/mexicoverdad/wp-content/themes/News Time/sidebar.php on line 18
       ```
   
 * Could someone point me to the problem? If I know what I am looking at, then I
   can probably fix it.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Jeremy Clark](https://wordpress.org/support/users/jeremyclark13/)
 * (@jeremyclark13)
 * [19 years, 1 month ago](https://wordpress.org/support/topic/errors-after-upgrade/#post-554966)
 * In the newest version 2.1 wp_list_cats has been been renamed and your theme will
   need to be reworked. You can refer to the this [page](http://codex.wordpress.org/Template_Tags#Category_tags)
   for more help. Also look at the same page for the get_archives() tag.
 *  [MichaelH](https://wordpress.org/support/users/michaelh/)
 * (@michaelh)
 * [19 years, 1 month ago](https://wordpress.org/support/topic/errors-after-upgrade/#post-554967)
 * You might check to see if there is an up-to-date version of your theme or make
   the changes to use the [template tag](http://codex.wordpress.org/Template_Tags),
   [wp_list_categories](http://codex.wordpress.org/Template_Tags/wp_list_categories),
   instead of wp_list_cats.
 *  Thread Starter [BJ05](https://wordpress.org/support/users/bj05/)
 * (@bj05)
 * [19 years, 1 month ago](https://wordpress.org/support/topic/errors-after-upgrade/#post-554970)
 * Thanks guys. Got the issue worked out and was coming back to delete this post.
 * Got her working now.
 *  [indiaberry](https://wordpress.org/support/users/indiaberry/)
 * (@indiaberry)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/errors-after-upgrade/#post-555210)
 * Well, how did you get her working now?

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Errors after upgrade’ is closed to new replies.

## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)
 * [fatal](https://wordpress.org/support/topic-tag/fatal/)
 * [get_archives](https://wordpress.org/support/topic-tag/get_archives/)
 * [wp_list_cats](https://wordpress.org/support/topic-tag/wp_list_cats/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 4 participants
 * Last reply from: [indiaberry](https://wordpress.org/support/users/indiaberry/)
 * Last activity: [18 years, 5 months ago](https://wordpress.org/support/topic/errors-after-upgrade/#post-555210)
 * Status: not resolved

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