Title: Warning: call_user_func_array on WP
Last modified: August 21, 2016

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# Warning: call_user_func_array on WP

 *  Resolved [sharonmiranda](https://wordpress.org/support/users/sharonmiranda/)
 * (@sharonmiranda)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-on-wp/)
 * Is this plugin not viable on WordPress V. 6.1?
    I get this error when activated:
 * Warning: call_user_func_array() [function.call-user-func-array]: First argument
   is expected to be a valid callback, ‘RGForms::maybe_process_form’ was given in/
   home/econet/public_html/wp-includes/plugin.php on line 406
 * Is there a fix? This plugin is important to our world, so warrants being updated,
   and the developers credited enough to warrant it.
 * [http://wordpress.org/plugins/idealien-rideshare/](http://wordpress.org/plugins/idealien-rideshare/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [sharonmiranda](https://wordpress.org/support/users/sharonmiranda/)
 * (@sharonmiranda)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-on-wp/#post-4386823)
 * Ah. I should have read the installation guide. Having to install another non-
   free plugin creates an issue. I am merely testing, and would also want to test
   the market for its usefulness before I pay for a plugin.
 *  Plugin Author [Jamie O](https://wordpress.org/support/users/idealien/)
 * (@idealien)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-on-wp/#post-4387062)
 * Gravity Forms is only required for the rideshare submission. The next version
   will likely also include support for Advanced Custom Fields which is a free plugin.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Warning: call_user_func_array on WP’ is closed to new replies.

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

 * 2 replies
 * 2 participants
 * Last reply from: [Jamie O](https://wordpress.org/support/users/idealien/)
 * Last activity: [12 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-on-wp/#post-4387062)
 * Status: resolved