Title: Plugin outputs warning
Last modified: August 21, 2016

---

# Plugin outputs warning

 *  Resolved [growe](https://wordpress.org/support/users/growe/)
 * (@growe)
 * [12 years ago](https://wordpress.org/support/topic/plugin-outputs-warning/)
 * Instead of giving the expected output in my feed I get this…
 *     ```
       <b>Warning</b>
       : call_user_func_array() [
       <a href="function.call-user-func-array">function.call-user-func-array</a>
       ]: First argument is expected to be a valid callback, 'Extend_RSS_By_Custom_Fields::add_my_custom_field_node' was given in
       <b>
       /home/hcfcornw/public_html/home/wp-includes/plugin.php
       </b>
       on line
       <b>470</b>
       ```
   
 * [https://wordpress.org/plugins/custom-fields-rss/](https://wordpress.org/plugins/custom-fields-rss/)

Viewing 1 replies (of 1 total)

 *  Thread Starter [growe](https://wordpress.org/support/users/growe/)
 * (@growe)
 * [12 years ago](https://wordpress.org/support/topic/plugin-outputs-warning/#post-4960407)
 * Got the code fix at this link…
    [http://stackoverflow.com/questions/23924855/custom-fields-in-wordpress-rss-feed-code-error](http://stackoverflow.com/questions/23924855/custom-fields-in-wordpress-rss-feed-code-error)

Viewing 1 replies (of 1 total)

The topic ‘Plugin outputs warning’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/custom-fields-rss_dfe0e2.svg)
 * [Custom Fields RSS](https://wordpress.org/plugins/custom-fields-rss/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/custom-fields-rss/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/custom-fields-rss/)
 * [Active Topics](https://wordpress.org/support/plugin/custom-fields-rss/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/custom-fields-rss/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/custom-fields-rss/reviews/)

## Tags

 * [custom](https://wordpress.org/support/topic-tag/custom/)
 * [RSS](https://wordpress.org/support/topic-tag/rss/)

 * 1 reply
 * 1 participant
 * Last reply from: [growe](https://wordpress.org/support/users/growe/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/plugin-outputs-warning/#post-4960407)
 * Status: resolved