Title: Cannot modify header information error (line 15)
Last modified: August 18, 2016

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# Cannot modify header information error (line 15)

 *  [visca](https://wordpress.org/support/users/visca/)
 * (@visca)
 * [19 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-error-line-15/)
 * When on the wp-admin/install.php page, there is an error at the top stating:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /homepages/46/d204656611/htdocs/wp-config.php:1) in /homepages/46/d204656611/
   htdocs/wp-admin/install.php on line 15
 * When I reviewed the wp-config.php file, line 15 refers to the localization function.
   I have not touched this part of the configuration file, I only modified the database
   details at the top of the wp-config.php – nothing else. I have also confirmed
   there are no white spaces or other formatting errors.
 * Any assistance with this matter would be most greatly appreciated. Most eager
   to get started with WordPress!! 🙂

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [visca](https://wordpress.org/support/users/visca/)
 * (@visca)
 * [19 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-error-line-15/#post-560911)
 * In addition to my previous post, I have attached an exact copy of my wp-config.
   php file (with exception to the server details which have been blanked out).
 * <?php
    // ** MySQL settings ** // define(‘DB_NAME’, ‘#########’); // The name
   of the database define(‘DB_USER’, ‘#########’); // Your MySQL username define(‘
   DB_PASSWORD’, ‘#########’); // …and password define(‘DB_HOST’, ‘#########’); //
   99% chance you won’t need to change this value
 * // You can have multiple installations in one database if you give each a unique
   prefix
    $table_prefix = ‘wp_’; // Only numbers, letters, and underscores please!
 * // Change this to localize WordPress. A corresponding MO file for the
    // chosen
   language must be installed to wp-includes/languages. // For example, install 
   de.mo to wp-includes/languages and set WPLANG to ‘de’ // to enable German language
   support. define (‘WPLANG’, ”);
 * /* That’s all, stop editing! Happy blogging. */
 * define(‘ABSPATH’, dirname(__FILE__).’/’);
    require_once(ABSPATH.’wp-settings.
   php’); ?>
 *  [beyondsc](https://wordpress.org/support/users/beyondsc/)
 * (@beyondsc)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-error-line-15/#post-561376)
 * I found the trouble:
 * first, take the space between define & ( — define (‘WPLANG’, ”);–
    then, take
   the / away from the coments:
 * // chosen language must be installed to wp-includes/languages.
    // For example,
   install de.mo to wp-includes/languages and set WPLANG to ‘de’
 * that’s it 🙂

Viewing 2 replies - 1 through 2 (of 2 total)

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## Tags

 * [cannot](https://wordpress.org/support/topic-tag/cannot/)
 * [header](https://wordpress.org/support/topic-tag/header/)
 * [Modify](https://wordpress.org/support/topic-tag/modify/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 2 replies
 * 2 participants
 * Last reply from: [beyondsc](https://wordpress.org/support/users/beyondsc/)
 * Last activity: [18 years, 6 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-error-line-15/#post-561376)
 * Status: not resolved

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