Uncaught Error: Class “QM_Component” not found

  • Periodically I’ve got errors from QM.

    My config – NGINX, php-8.1fpm, redis

    Also I use xdebug.

    This kind of error appears occasionally when I reload page.

    Fatal error: Uncaught Error: Class "QM_Component" not found
in /var/www/html/ROOT/wp-content/plugins/query-monitor/classes/Util.php on line 312

Call stack:

    QM_Util::get_file_component()
    wp-content/plugins/query-monitor/classes/Backtrace.php:276
    QM_Backtrace::get_frame_component()
    wp-content/plugins/query-monitor/classes/Backtrace.php:210
    QM_Backtrace::get_component()
    wp-content/plugins/query-monitor/collectors/php_errors.php:274
    QM_Collector_PHP_Errors::error_handler()
    wp-content/plugins/query-monitor/vendor/composer/ClassLoader.php:582
    include()
    wp-content/plugins/query-monitor/vendor/composer/ClassLoader.php:582
    Composer\Autoload\{closure}()
    wp-content/plugins/query-monitor/vendor/composer/ClassLoader.php:433
    Composer\Autoload\ClassLoader::loadClass()
    wp-content/plugins/query-monitor/classes/Util.php:312
    QM_Util::get_file_component()
    wp-content/plugins/query-monitor/classes/Backtrace.php:276
    QM_Backtrace::get_frame_component()
    wp-content/plugins/query-monitor/classes/Backtrace.php:210
    QM_Backtrace::get_component()
    wp-content/plugins/query-monitor/collectors/transients.php:91
    QM_Collector_Transients::setted_transient()
    wp-content/plugins/query-monitor/collectors/transients.php:49
    QM_Collector_Transients::action_setted_site_transient()
    wp-includes/class-wp-hook.php:308
    WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:332
    WP_Hook::do_action()
    wp-includes/plugin.php:517
    do_action()
    wp-includes/option.php:2097
    set_site_transient()
    wp-content/plugins/woocommerce-ajax-filters/includes/paid/advanced_caching.php:114
    BeRocket_AAPF_paid_advanced_caching::br_set_cache()
    wp-includes/class-wp-hook.php:308
    WP_Hook::apply_filters()
    wp-includes/plugin.php:205
    apply_filters()
    wp-content/plugins/woocommerce-ajax-filters/includes/functions.php:160
    br_set_cache()
    wp-content/plugins/woocommerce-ajax-filters/includes/faster_recount.php:100
    BeRocket_AAPF_faster_attribute_recount::recount_terms_without_prepare()
    wp-content/plugins/woocommerce-ajax-filters/includes/faster_recount.php:33
    BeRocket_AAPF_faster_attribute_recount::recount_terms()
    wp-includes/class-wp-hook.php:308
    WP_Hook::apply_filters()
    wp-includes/plugin.php:205
    apply_filters()
    wp-content/plugins/woocommerce-ajax-filters/includes/filters/get_terms.php:267
    BeRocket_AAPF_get_terms::recount_products()
    wp-includes/class-wp-hook.php:308
    WP_Hook::apply_filters()
    wp-includes/plugin.php:205
    apply_filters()
    wp-content/plugins/woocommerce-ajax-filters/includes/filters/get_terms.php:72
    BeRocket_AAPF_get_terms::get_terms()
    wp-content/plugins/woocommerce-ajax-filters/includes/filters/get_terms.php:361
    berocket_aapf_get_terms()
    wp-content/plugins/woocommerce-ajax-filters/includes/filters/display_widget.php:515
    BeRocket_AAPF_Widget::__construct()
    wp-content/plugins/woocommerce-ajax-filters/includes/new_widget.php:231
    BeRocket_new_AAPF_Widget_single::widget()
    wp-includes/widgets.php:1257
    the_widget()
    wp-content/plugins/woocommerce-ajax-filters/includes/new_widget.php:60
    BeRocket_new_AAPF_Widget::widget()
    wp-includes/class-wp-widget.php:394
    WP_Widget::display_callback()
    wp-includes/widgets.php:835
    dynamic_sidebar()
    wp-content/themes/generatepress/sidebar-left.php:22
    require_once()
    wp-includes/template.php:783
    load_template()
    wp-includes/template.php:718
    locate_template()
    wp-includes/general-template.php:136
    get_sidebar()
    wp-content/themes/generatepress/inc/structure/sidebars.php:29
    generate_construct_sidebars()
    wp-includes/class-wp-hook.php:308
    WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:332
    WP_Hook::do_action()
    wp-includes/plugin.php:517
    do_action()
    wp-content/plugins/woocommerce/templates/archive-product.php:103
    include()
    wp-content/plugins/woocommerce/includes/wc-core-functions.php:345
    wc_get_template()
    wp-content/plugins/woocommerce/templates/taxonomy-product-cat.php:22
    include()
    wp-includes/template-loader.php:106
    require_once()
    wp-blog-header.php:19
    require()
    index.php:17
Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Author John Blackbourn

    (@johnbillion)

    WordPress Core Developer

    Thanks, this has been reported a few times but I’ve yet to reproduce it myself. It’s caused when a PHP error is triggered during the PHP class autoloading, but I don’t understand what could trigger such as error or how to reproduce it. Due to the nature of the problem, the error doesn’t get logged either.

    I’ll try to find some time to continue looking into it. Could you provide a list of the active plugins on your site?

    Thread Starter JayFry

    (@jayfry)

    Here you are.

    
BEAR – Bulk Editor and Products Manager Professional for WooCommerce
Better Search Replace
Content Aware Sidebars
Converter for Media
Enable Media Replace
FileBird Pro
Fluent Forms
Fluent Forms Pro Add On Pack
GenerateBlocks
GP Premium
Index WP MySQL For Speed
Inpsyde Translation Cache
Login No Captcha reCAPTCHA (Google)
Max Mega Menu
Max Mega Menu - Pro Addon
Members
Preserve Page and Taxonomy Hierarchy on Edit Menus Screen
Product Feed PRO for WooCommerce
Redis Object Cache
Regenerate Thumbnails
Rewrite Rules Inspector
Search & Replace
Slim Maintenance Mode
Smart Slider 3 Pro
Stackable - Gutenberg Blocks (Premium)
Url Rewrite Analyzer
WooCommerce
WooCommerce Advanced Bulk Edit
WooCommerce AJAX Products Filter
WordPress Importer
WP All Export - WooCommerce Export Add-On Pro
WP All Export Pro
WP All Import - WooCommerce Import Add-On Pro
WP All Import Pro
WP Mail SMTP
Yoast SEO
Viewing 2 replies - 1 through 2 (of 2 total)
  • The topic ‘Uncaught Error: Class “QM_Component” not found’ is closed to new replies.