Title: [Plugin: Widget Builder] Cannot modify header information
Last modified: August 20, 2016

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# [Plugin: Widget Builder] Cannot modify header information

 *  Resolved [J.Frost](https://wordpress.org/support/users/jfrost-1/)
 * (@jfrost-1)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-widget-builder-cannot-modify-header-information/)
 * Hello! I had a problem and I don’t know how to solve it. Please help me.
    I think
   something with the php settings, because on another server it worked without 
   any problems.
 * It occurs when I try to add/change a widget:
 * Notice: Undefined index: tribe_widget_builder_dashboard in /var/www/test/wp-content/
   plugins/widget-builder/classes/widget-builder.php on line 422
 * Notice: Undefined index: tribe_widget_builder_disable_sidebar in /var/www/test/
   wp-content/plugins/widget-builder/classes/widget-builder.php on line 422
 * Warning: Cannot modify header information – headers already sent by (output started
   at /var/www/test/wp-content/plugins/widget-builder/classes/widget-builder.php:
   422) in /var/www/test/wp-includes/pluggable.php on line 881
 * ps: 422 line in widget-builder.php:
    `${$f} = trim(strip_tags($_POST[$f]));`
 * [http://wordpress.org/extend/plugins/widget-builder/](http://wordpress.org/extend/plugins/widget-builder/)

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

 *  Thread Starter [J.Frost](https://wordpress.org/support/users/jfrost-1/)
 * (@jfrost-1)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-widget-builder-cannot-modify-header-information/#post-3063796)
 * > something with the php settings
 * I’m sorry, of course it is not true =)
 * `define('WP_DEBUG', false);` it solved the problem, but is it good decision?
 *  Plugin Author [Timothy Wood](https://wordpress.org/support/users/codearachnid/)
 * (@codearachnid)
 * [13 years, 7 months ago](https://wordpress.org/support/topic/plugin-widget-builder-cannot-modify-header-information/#post-3063985)
 * I’m not sure I understand your follow up comment. Are you not defining WP_DEBUG
   in your wp-config.php file already? I’m not sure I understand what you asking
   if it is a good decision?

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

The topic ‘[Plugin: Widget Builder] Cannot modify header information’ is closed 
to new replies.

 * ![](https://ps.w.org/widget-builder/assets/icon-256x256.png?rev=985727)
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 * 2 replies
 * 2 participants
 * Last reply from: [Timothy Wood](https://wordpress.org/support/users/codearachnid/)
 * Last activity: [13 years, 7 months ago](https://wordpress.org/support/topic/plugin-widget-builder-cannot-modify-header-information/#post-3063985)
 * Status: resolved