Installed Matomo for Wordpress but getting an error of type E_ERROR

[enual]

Issue: Getting an error once Matomo plugin is activated.

Error:
An error of type E_ERROR was found in line 136 of the file /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/app/vendor/php-di/php-di/src/Container.php caused. Error message: Uncaught Error: Class 'DI\NotFoundException' not found in /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/app/vendor/php-di/php-di/src/Container .php:136
Stack trace:
#0 /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/app/core/Container/StaticContainer.php(81): DI\Container->get()
#1 /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(1351): Piwik\Container\StaticContainer::get()
#2 /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(277): WpMatomo\Admin\SystemReport->get_browser_info()
#3 /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(288): WpMatomo\Admin\SystemReport->get_error_tables()
#4 /homepages/26/d963816289/htdocs/wp-ap/wp-content/plugins/matomo/classes/WpMatomo/Admin/Menu.php(183): WpMatomo\Admin\SystemReport->errors_present()
#5 /homepages/26/d963816289/htdocs/wp-ap/wp-includes/class-wp-hook.php(308): WpMatomo

System:
Wordpress 6.22v
PHP 8.2
Matomo for Wordpress plugin: 4.14.2

[ChonPaSa]

Getting the same error:

Ein Fehler vom Typ E_ERROR wurde in der Zeile 136 der Datei wp-content/plugins/matomo/app/vendor/php-di/php-di/src/Container.php verursacht. Fehlermeldung: Uncaught Error: Class "DI\NotFoundException" not found in wp-content/plugins/matomo/app/vendor/php-di/php-di/src/Container.php:136 Stack trace:

#0 /wp-content/plugins/matomo/app/core/Container/StaticContainer.php(81): DI\Container->get()
#1 /wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(1351): Piwik\Container\StaticContainer::get()
#2 /wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(277): WpMatomo\Admin\SystemReport->get_browser_info()
#3 /wp-content/plugins/matomo/classes/WpMatomo/Admin/SystemReport.php(288): WpMatomo\Admin\SystemReport->get_error_tables()
#4 /wp-content/plugins/matomo/classes/WpMatomo/Admin/Menu.php(183): WpMatomo\Admin\SystemReport->errors_present()
#5 /wp-includes/class-wp-hook.php(308): WpMatomo\Admin\Menu->add_menu()
#6 /wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#7 /wp-includes/plugin.php(517): WP_Hook->do_action()
#8 /wp-admin/includes/menu.php(155): do_action()
#9 /wp-admin/menu.php(420): require_once('/homepages/40/d...')
#10 /wp-admin/admin.php(158): require('/homepages/40/d...')
#11 {main}

thrown

Wordpress 6.22
PHP 8.0
Matomo: 4.14.2

[diosmosis]

Hi @enual and @ChonPaSa, apologies for the late reply. Are you still experiencing this issue with the latest Matomo for Wordpress version?

[ChonPaSa]

Hi @diosmosis yes, still same issue

[diosmosis]

@ChonPaSa would you be able to provide the list of plugins you're using wordpress with? And can you check if any of those plugins have a vendor/php-di folder in them?

[ChonPaSa]

@diosmosis Here is the list of active plugins:

Plugin	Version
301 Redirects	Version 2.73 von WebFactory Ltd
Advanced Custom Fields PRO	Version 6.2.0 von WP Engine
Block Manager	Version 1.2.5 von Darren Cooney
Complianz Privacy Suite (GDPR/CCPA) premium	Version 6.5.3 von Really Simple Plugins (Aktuelle Version: 6.5.4)
Duplicate Page	Version 4.5.2 von mndpsingh287
Easy WP SMTP	Version 2.1.2 von Easy WP SMTP
Error Log Viewer by BestWebSoft	Version 1.1.2 von BestWebSoft
Geometric Graphic Generator	Version 1.0.0 von Lucas Garbe
Polylang Pro	Version 3.4.5 von WP SYNTEX
Post Types Order	Version 2.1 von Nsp Code
Query Monitor	Version 3.13.1 von John Blackbourn
Simple Custom Post Order	Version 2.5.6 von Colorlib
UpdraftPlus - Backup/Restore	Version 2.23.9.26 von UpdraftPlus.Com, DavidAnderson (Aktuelle Version: 2.23.10.26)
User Role Editor	Version 4.64 von Vladimir Garagulya
wp-Typography	Version 5.9.1 von Peter Putzer
WP Rocket	Version 3.14.3 von WP Media (Aktuelle Version: 3.15)
Yoast SEO	Version 20.13 von Team Yoast (Aktuelle Version: 21.1)

None of them hast php-di. This was only found in mamoto/app/vendor

Thanks for looking into this

[diosmosis]

@ChonPaSa I don't know if this is the exact cause of the problem, but at least one of your plugins isn't compatible with Matomo for Wordpress: #642

It's possible some of the other ones are as well, as the error message you're getting seems a bit different than what I'd expect. If you're willing to try see if our plugin works when some or all of the other plugins are deactivated, that would be very helpful in case there's another plugin that causes problems for ours.

As for WP Rocket, we are actively working towards fixing those compatibility issues in the near future.

[diosmosis]

@ChonPaSa Matomo for WordPress 5 has increased compatibility with other WordPress plugins. If you are able, can you try using the new version and seeing if you still have issues?

Since the issue should be fixed I'll close this for now, but if you have further feedback or experience new issues, feel free to comment and I'll re-open it.

[ChonPaSa]

@diosmosis it seems to be working now. Thanks