Title: call_user_func_array() expects parameter 1 to be a valid callback
Last modified: August 30, 2016

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# call_user_func_array() expects parameter 1 to be a valid callback

 *  Resolved [superphly](https://wordpress.org/support/users/superphly/)
 * (@superphly)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/)
 * Getting this error on every page… call me crazy, but I think it’s an error with
   Debug_Objects – haha.
 * Backtrace from ‘call_user_func_array() expects parameter 1 to be a valid callback,
   class ‘Debug_Objects_Transients’ not found’ at /var/www/wp-includes/plugin.php
   496:
 * [https://wordpress.org/plugins/debug-objects/](https://wordpress.org/plugins/debug-objects/)

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

 *  [peterjanes](https://wordpress.org/support/users/peterjanes/)
 * (@peterjanes)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/#post-6277808)
 * There’s a mismatch between the filename and the setting that loads it. I worked
   around the problem by renaming `inc/class-transient.php` to `class-transients.
   php` and changing all of the occurrences of `Debug_Object_Transient` inside it
   to `Debug_Object_Transients`.
 *  Plugin Author [Frank Bueltge](https://wordpress.org/support/users/bueltge/)
 * (@bueltge)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/#post-6277809)
 * Thanks for the issue. I have fixed this small issue in the current development
   version. Maybe you can retest with this version and give me feedback?
 * Download: [https://github.com/bueltge/Debug-Objects/archive/master.zip](https://github.com/bueltge/Debug-Objects/archive/master.zip)

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

The topic ‘call_user_func_array() expects parameter 1 to be a valid callback’ is
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 * 2 replies
 * 3 participants
 * Last reply from: [Frank Bueltge](https://wordpress.org/support/users/bueltge/)
 * Last activity: [10 years, 9 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-6/#post-6277809)
 * Status: resolved