Title: Optiontree activation causes errors
Last modified: August 21, 2016

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# Optiontree activation causes errors

 *  [bkleine](https://wordpress.org/support/users/bkleine/)
 * (@bkleine)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/optiontree-activation-causes-errors/)
 * I have a fresh WP 3.7.1 install and the Lumen theme from envato which seemed 
   to have used optiontree 2.0.16. I have installed the latest optiontree 2.1.4 
   and immediately after activation I get in the plugins installed admin site the
   following warnings:
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   ot_register_theme_options_page’ not found or invalid function name in D:\WWW\
   hjk\wp-includes\plugin.php on line 429
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   ot_register_theme_options_admin_bar_menu’ not found or invalid function name 
   in D:\WWW\hjk\wp-includes\plugin.php on line 507
 * plugin.php does not seem to be theme specific. I wonder therefore where the warning
   comes from.
 * Kind regards
    Bernhard
 * [http://wordpress.org/plugins/option-tree/](http://wordpress.org/plugins/option-tree/)

The topic ‘Optiontree activation causes errors’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/option-tree_363534.svg)
 * [OptionTree](https://wordpress.org/plugins/option-tree/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/option-tree/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/option-tree/)
 * [Active Topics](https://wordpress.org/support/plugin/option-tree/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/option-tree/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/option-tree/reviews/)

## Tags

 * [warning](https://wordpress.org/support/topic-tag/warning/)

 * 0 replies
 * 1 participant
 * Last reply from: [bkleine](https://wordpress.org/support/users/bkleine/)
 * Last activity: [12 years, 6 months ago](https://wordpress.org/support/topic/optiontree-activation-causes-errors/)
 * Status: not resolved