Title: call_user_func_array() expects parameter 1 to be a valid callback
Last modified: June 29, 2018

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

 *  Resolved [manigopal](https://wordpress.org/support/users/manigopal/)
 * (@manigopal)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/)
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   WPMailSMTP\tgmpa_load_bulk_installer’ not found or invalid function name in /
   public_html/wp-includes/class-wp-hook.php on line 286

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [Ciprian](https://wordpress.org/support/users/cipriandoroftei/)
 * (@cipriandoroftei)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447157)
 * After the update to the latest version I get the same warning.
 *  Plugin Author [Slava Abakumov](https://wordpress.org/support/users/slaffik/)
 * (@slaffik)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447215)
 * Hey [@manigopal](https://wordpress.org/support/users/manigopal/) & [@cipriandoroftei](https://wordpress.org/support/users/cipriandoroftei/),
 * When you get a chance would you mind reaching out to us at [https://wpforms.com/contact](https://wpforms.com/contact)
   so we can get some additional details from you? Just click the “Complete A Form”
   button ([https://cl.ly/2u2D1q470K1r](https://cl.ly/2u2D1q470K1r)) and put in 
   a general inquiry and we’ll find it. In your message please link to this page.
 * We’ve had a few isolated reports of this error, however, we have not been able
   to replicate the issue in of our tests. This leads us to believe it’s like something
   specific to the environment (eg caching, configuration, or similar).
 * Once we get some more details from you, we can see about investigating getting
   this resolved.
 * Thanks!
 *  [pogz84](https://wordpress.org/support/users/pogz84/)
 * (@pogz84)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447307)
 * same problem here… any idea how to solve this?
 *  [azibyaqoob](https://wordpress.org/support/users/azibyaqoob/)
 * (@azibyaqoob)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447649)
 * Having the same problem
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   WPMailSMTP\tgmpa_load_bulk_installer’ not found or invalid function name in /
   home/public_html/wp-includes/class-wp-hook.php on line 286
 *  Plugin Author [Slava Abakumov](https://wordpress.org/support/users/slaffik/)
 * (@slaffik)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447680)
 * I have finally got contacted by users and I know what’s the reason for this issue.
 * It will be fixed in WP Mail SMTP 1.3.2.
 * Thank you, [@pogz84](https://wordpress.org/support/users/pogz84/)!
 *  [pogz84](https://wordpress.org/support/users/pogz84/)
 * (@pogz84)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10447710)
 * no problem 🙂 thanks for fast problem fix 🙂
 *  Plugin Contributor [Jared Atchison](https://wordpress.org/support/users/jaredatch/)
 * (@jaredatch)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10448661)
 * Just a heads up for future readers, we are no longer following are responding
   to this specific thread.
 * The original issue was around a compatibility conflict with `tgmpa`.
 * This issue should be resolve as of version 1.3.2.
 * If you are having problems please create a new issue, do not reply to or bump
   this thread.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘call_user_func_array() expects parameter 1 to be a valid callback’ is
closed to new replies.

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## Tags

 * [callback](https://wordpress.org/support/topic-tag/callback/)
 * [mail](https://wordpress.org/support/topic-tag/mail/)

 * 7 replies
 * 6 participants
 * Last reply from: [Jared Atchison](https://wordpress.org/support/users/jaredatch/)
 * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/call_user_func_array-expects-parameter-1-to-be-a-valid-callback-15/#post-10448661)
 * Status: resolved