Title: Errors when activating plugin
Last modified: August 30, 2016

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# Errors when activating plugin

 *  [mileskimberley](https://wordpress.org/support/users/mileskimberley/)
 * (@mileskimberley)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/errors-when-activating-plugin-2/)
 * We get the following errors when activating your plugin, can you provide any 
   assistance?
 *     ```
       Warning: call_user_func() expects parameter 1 to be a valid callback, class 'RWMB_Fancy_Category_Field' does not have a method 'normalize_field' in /srv/users/serverpilot/apps/bisspacexchange/public/wp-content/plugins/wp-property/vendor/plugins/wp-meta-box/inc/meta-box.php on line 412
   
       Warning: call_user_func() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /srv/users/serverpilot/apps/bisspacexchange/public/wp-content/plugins/wp-property/vendor/plugins/wp-meta-box/inc/meta-box.php on line 80
       ```
   
 * [https://wordpress.org/plugins/wp-property/](https://wordpress.org/plugins/wp-property/)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [MariaKravchenko](https://wordpress.org/support/users/mariakravchenko/)
 * (@mariakravchenko)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/errors-when-activating-plugin-2/#post-6722969)
 * Hello.
 * You can disable debug mode and you won’t see those warning. We will try to fix
   them in the next release of wp-property.
 * Regards.

Viewing 1 replies (of 1 total)

The topic ‘Errors when activating plugin’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wp-property_c36510.svg)
 * [WP-Property - WordPress Powered Real Estate and Property Management](https://wordpress.org/plugins/wp-property/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-property/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-property/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-property/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-property/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-property/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [MariaKravchenko](https://wordpress.org/support/users/mariakravchenko/)
 * Last activity: [10 years, 7 months ago](https://wordpress.org/support/topic/errors-when-activating-plugin-2/#post-6722969)
 * Status: not resolved