Title: Warning: call_user_func_array() expects parameter
Last modified: August 27, 2018

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# Warning: call_user_func_array() expects parameter

 *  [jpussacq](https://wordpress.org/support/users/jpussacq/)
 * (@jpussacq)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-expects-parameter-4/)
 * Hi.
 * When I activate the plugin, I am obtaining the following error:
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, no
   array or string given in /home/xxx/public_html/wp-content/plugins/if-menu/if-
   menu.php on line 99
 * Any help?
    Thanks in advance.

Viewing 1 replies (of 1 total)

 *  Plugin Author [Andrei](https://wordpress.org/support/users/andreiigna/)
 * (@andreiigna)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-expects-parameter-4/#post-10641066)
 * Hi,
 * Thanks for letting me know about this.
 * This is a strange error, which may happen when other plugins / themes add functionality
   to If Menu plugin or the plugin info in database uses an old format
 * Are there any visibility rules set on menu items? Or was the plugin prevoiusly
   installed on the site?
 * Cheers

Viewing 1 replies (of 1 total)

The topic ‘Warning: call_user_func_array() expects parameter’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Andrei](https://wordpress.org/support/users/andreiigna/)
 * Last activity: [7 years, 9 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-expects-parameter-4/#post-10641066)
 * Status: not resolved