Hi,

I’m receiving this error 1-2 times per day like clockwork:

Current plugin: bbPress (version 2.6.9)
PHP version 8.1.6
Error Details
=============
An error of type E_ERROR was caused in line 33 of the file /home/site/public_html/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-db.php. Error message: Uncaught TypeError: register_shutdown_function(): Argument #1 ($callback) must be a valid callback, class BBP_Converter_DB does not have a method "__destruct" in /home/site/public_html/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-db.php:33
Stack trace:
#0 /home/site/public_html/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-db.php(33): register_shutdown_function(Array)
#1 /home/site/public_html/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-base.php(150): BBP_Converter_DB->__construct('site_db', '&9Ah58fa', 'site_db', 'localhost')
#2 /home/site/public_html/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-base.php(104): BBP_Converter_Base->init()
#3 /home/site/public_html/wp-content/plugins/bbpress/includes/admin/converters/phpBB.php(24): BBP_Converter_Base->__construct()
#4 /home/site/public_html/wp-content/plugins/bbpress/includes/admin/tools/converter.php(94): phpBB->__construct()
#5 /home/site/public_html/wp-content/plugins/bbpress/includes/users/functions.php(982): bbp_new_converter('phpBB')
#6 /home/site/public_html/wp-includes/class-wp-hook.php(307): bbp_user_maybe_convert_pass('')
#7 /home/site/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array)
#8 /home/site/public_html/wp-includes/plugin.php(474): WP_Hook->do_action(Array)
#9 /home/site/public_html/wp-content/plugins/bbpress/includes/core/sub-actions.php(265): do_action('bbp_login_form_...')
#10 /home/site/public_html/wp-includes/class-wp-hook.php(307): bbp_login_form_login('')
#11 /home/site/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array)
#12 /home/site/public_html/wp-includes/plugin.php(474): WP_Hook->do_action(Array)
#13 /home/site/public_html/wp-login.php(518): do_action('login_form_logi...')
#14
thrown

[@robin-w Moderator 2 years, 7 months ago]

ok, not entirely sure why a convertor is running. Is there some specific action you are doing to get this ?

[@hammyhavoc Participant 2 years, 7 months ago]

Hi Robin!

Thank you very much for the reply, really appreciate it. :- )

Around two years ago, I migrated from phpBB to bbPress, and it works great, just get this error via email (via Jetpack) 1-2 times per day around the same time each day. There shouldn’t be any kind of conversion going on anymore. Once migrated, you don’t need it anymore, right? Is there any way to disable it from running?

[@robin-w Moderator 2 years, 7 months ago]

ok, I think this is jetpack doing checks in the background.

I’d guess that php 8.1.6 does not like that the destruct function has not been defined, older versions are probably happy with that, each newer version of php seems to get less tolerant, and plugin authors spend their lives fighting a stricter and stricter php regime 🙂

[@malachite Participant 1 year, 12 months ago]

I started getting this error after I upgraded to PHP 8.1. It prevents login, so this is a problematic error. BBPress is trying to setup a new login object and in the process wants to destroy any existing login object. Because BBPress doesn’t actually have a __destruct method php8.1 throws an error. I commented out that block of code and everything seems to work correctly. Of course that is a temporary fix that will be overwritten as soon as the plugin is updated.

I don’t have Jetpack installed on this server so it is not the culprit.

[@robin-w Moderator 1 year, 12 months ago]

so just for clarity, what lines of what file did you comment out?

[@malachite Participant 1 year, 12 months ago]

/wp-content/plugins/bbpress/includes/admin/classes/class-bbp-converter-db.php

I commented out lines 33-37:

// register_shutdown_function( array( $this, '__destruct' ) );
// 
// if ( WP_DEBUG && WP_DEBUG_DISPLAY ) {
//    $this->show_errors();
// }

[@robin-w Moderator 1 year, 12 months ago]

Thanks for posting – should help someone else coming along later.

I’ve posted a trac ticket

https://bbpress.trac.wordpress.org/ticket/3508#ticket

[@malachite Participant 1 year, 12 months ago]

Thanks, Robin!