Title: Several debug warnings
Last modified: August 20, 2016

---

# Several debug warnings

 *  [definitio](https://wordpress.org/support/users/definitio/)
 * (@definitio)
 * [13 years, 2 months ago](https://wordpress.org/support/topic/several-debug-warnings/)
 *     ```
       WARNING: wp-includes/functions.php:928 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-includes/functions.php:930 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-includes/functions.php:3710 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-includes/class-wp.php:382 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-includes/class-wp.php:385 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-includes/functions.php:888 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
   
           WARNING: wp-admin/admin-header.php:9 - Cannot modify header information - headers already sent by (output started at /wp-content/plugins/wp-widget-cache/widget-cache.php:77)
       ```
   
 * [http://wordpress.org/extend/plugins/wp-widget-cache/](http://wordpress.org/extend/plugins/wp-widget-cache/)

The topic ‘Several debug warnings’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [definitio](https://wordpress.org/support/users/definitio/)
 * Last activity: [13 years, 2 months ago](https://wordpress.org/support/topic/several-debug-warnings/)
 * Status: not resolved