Title: Fatal error: require() [function.require]: Failed opening required
Last modified: August 20, 2016

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# Fatal error: require() [function.require]: Failed opening required

 *  [f_indryani](https://wordpress.org/support/users/f_indryani/)
 * (@f_indryani)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-require-functionrequire-failed-opening-required-2/)
 * Hi all,
    Since I updated my plugins and wordpress I have this difficulty to open
   my wordpress. it says Fatal error: require() [function.require]: Failed opening
   required ‘./wp-blog-header.php’ (include_path=’.;C:\php5\pear’) in C:\HostingSpaces\
   elektra\kaintenunikat.com\wwwroot\index.php on line 17
 * anyone can help me with this? please… my domain would be [http://www.kaintenunikat.com](http://www.kaintenunikat.com)
   
   Thank you…

Viewing 1 replies (of 1 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [15 years ago](https://wordpress.org/support/topic/fatal-error-require-functionrequire-failed-opening-required-2/#post-2096095)
 * Fatal error in the output may indicate either your theme doesn’t like 3.1.2, 
   you have a plugin that doesn’t like 3.1.2, or you have an incomplete upgrade.
 * So, try:
 * -deactivating ALL plugins temporarily to narrow down and possibly fix the problem.
   If the problem goes away, activate them individually (one-by-one) to find the
   problematic plugin.
 * If you don’t have access to your admin area, try deactivating them [manually](http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)
   via FTP or phpMyAdmin.
 * -switching to the default theme (“twentyten”) for a moment by renaming your current
   theme’s folder in wp-content/themes. The idea is to force WordPress to fall back
   to the default theme to rule out any theme-specific issue.
 * If you don’t have access to your admin area, then access your server via FTP 
   or SFTP or whatever file management application your host provides.
 * – [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 or phpMyAdmin. Sometimes, an apparently inactive plugin can still cause
   problems (because the hooks remain unless plugins completely removed).
 * -If the above steps do not resolve the issue, download WordPress again and replace
   your copies of everything **EXCEPT** the wp-config.php file and the /wp-content/
   directory with fresh copies. This should replace your core files without changing
   your content and settings in wp-config.php file and the /wp-content/ directory.
 * After you are done uploading the new files, point your browser to /wp-admin/upgrade.
   php

Viewing 1 replies (of 1 total)

The topic ‘Fatal error: require() [function.require]: Failed opening required’ is
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## Tags

 * [Failed opening required](https://wordpress.org/support/topic-tag/failed-opening-required/)

 * 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: [15 years ago](https://wordpress.org/support/topic/fatal-error-require-functionrequire-failed-opening-required-2/#post-2096095)
 * Status: not resolved

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