Title: Fatal error: require(): Failed opening required
Last modified: August 30, 2016

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# Fatal error: require(): Failed opening required

 *  [agetler](https://wordpress.org/support/users/agetler/)
 * (@agetler)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-require-failed-opening-required-1/)
 * Hi folks,
 * First time Forum post, so I hope I am within the guidelines>
 * Getting this Fatal Error upon signing in. Can you offer guidance?
 * Fatal error: require(): Failed opening required ‘/webroot/c/u/cuzit001/cuzitsgood.
   net/www/wp-admin/wp-blog-header.php’ (include_path=’.:/usr/share/pear:/usr/share/
   php53/pear’) in /webroot/c/u/cuzit001/cuzitsgood.net/www/wp-admin/index.php on
   line 17
 * Thanks,
    Al

Viewing 1 replies (of 1 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-require-failed-opening-required-1/#post-6695958)
 * Fatal error in the output generally indicates either: (1) your theme doesn’t 
   like your version of WordPress (2) you have a plugin that doesn’t like your version
   of WordPress (3) or you have an incomplete install/upgrade. Try:
 * – Flushing any caching plugins you might be running, as well as server and/or
   browser caches. Also, any op cache or content network cache, as well as Cloudflare,
   clear those caches.
    – deactivating ALL (yes all) plugins temporarily to see 
   if this resolves the problem (plugin functions can interfere). If this works,
   re-activate them individually (one-by-one) to find the problematic plugin(s).–
   If you can’t get into your admin dashboard, try [resetting the plugins folder](http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)
   by [FTP](http://codex.wordpress.org/FTP_Clients). Sometimes, an apparently inactive
   plugin can still cause problems. Also remember to deactivate any plugins in the
   mu-plugins folder (if you have created such folder). The easiest way is to rename
   that folder to mu-plugins-old. – switching to the unedited default Twenty Fifteen
   theme for a moment using the WP dashboard to rule out any theme-specific issue(
   theme functions can interfere like plugins). If you don’t have access to your
   admin area, use [FTP ](http://codex.wordpress.org/FTP_Clients), or your web-host’s
   cPanel or whatever file management application your host provides. Navigate to/
   wp-content/themes/ and switch to the default theme by renaming your current theme’s
   folder by adding “-old” to the end of the folder name. Alternately, you can remove
   other themes except the default theme. That will force your site to use it. –
   If all the above steps do not resolve the issue, then try **MANUALLY** updating.
   Download a fresh copy of the WordPress .zip file to your computer, unzip it, 
   and use that to copy up all files and folders **EXCEPT the wp-config.php file
   and the /wp-content/ directory.** You may need to delete the old wp-admin and
   wp-includes folders and files on your server before uploading the new ones. Read
   the [Manual Update ](http://codex.wordpress.org/Updating_WordPress#Manual_Update)
   directions first.

Viewing 1 replies (of 1 total)

The topic ‘Fatal error: require(): Failed opening required’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [t-p](https://wordpress.org/support/users/t-p/)
 * Last activity: [10 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-require-failed-opening-required-1/#post-6695958)
 * Status: not resolved

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