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WordPress How to Build a WordPress Plugin Building a WordPress Plugin Settings Page Basic Markup for WordPress Settings Pages

Pol Ribas Pibernat
Pol Ribas Pibernat
8,952 Points

Fatal error: Cannot redeclare _wp_menu_output()

I am getting this error when accessing to the new settings page:

Fatal error: Cannot redeclare _wp_menu_output() (previously declared in /app/public/wp-admin/menu-header.php:68) in /app/public/wp-admin/menu-header.php on line 68 .

1 Answer

Stanley Thijssen
Stanley Thijssen
22,831 Points

Have you tryed to adjust this file? Or have you adjusted any code in your WordPress core?