Title: Activation problem
Last modified: August 21, 2016

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# Activation problem

 *  [dreamstone](https://wordpress.org/support/users/dreamstone/)
 * (@dreamstone)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/activation-problem-6/)
 * After activating installed plugin I have some errors in admin bar:
    Warning: 
   Missing argument 1 for register_activation_hook(), called in /home/p64474/www/
   image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php on line 
   29 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php
   on line 623
 * Warning: Missing argument 2 for register_activation_hook(), called in /home/p64474/
   www/image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php on line
   29 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php
   on line 623
 * Warning: Missing argument 1 for register_deactivation_hook(), called in /home/
   p64474/www/image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php
   on line 30 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.
   php on line 648
 * Warning: Missing argument 2 for register_deactivation_hook(), called in /home/
   p64474/www/image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php
   on line 30 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.
   php on line 648
 * Warning: Missing argument 1 for register_uninstall_hook(), called in /home/p64474/
   www/image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php on line
   31 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php
   on line 678
 * Warning: Missing argument 2 for register_uninstall_hook(), called in /home/p64474/
   www/image.leogunband.ru/wp-content/plugins/simple-picture-menu/index.php on line
   31 and defined in /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php
   on line 678
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php:623) in /home/
   p64474/www/image.leogunband.ru/wp-includes/option.php on line 571
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/p64474/www/image.leogunband.ru/wp-includes/plugin.php:623) in /home/
   p64474/www/image.leogunband.ru/wp-includes/option.php on line 572
 * There is no any other plugins, so conflict is impossible.
    Please, help to solve
   this problem.
 * [http://wordpress.org/plugins/simple-picture-menu/](http://wordpress.org/plugins/simple-picture-menu/)

The topic ‘Activation problem’ is closed to new replies.

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 * [Simple Picture Menu](https://wordpress.org/plugins/simple-picture-menu/)
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 * 0 replies
 * 1 participant
 * Last reply from: [dreamstone](https://wordpress.org/support/users/dreamstone/)
 * Last activity: [12 years, 7 months ago](https://wordpress.org/support/topic/activation-problem-6/)
 * Status: not resolved