Drupal8 - Solarium/Solarium 5.13 breaks Civicrm
If Solarium/Solarium 5.13 is used all Drupal 8 breaks
I was forced to apply composer require symfony/event-dispatcher:"4.3.4 as 3.4.99"
But this gives
PHP Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher' not found in /var/www/vhosts/XXX/vendor/civicrm/civicrm-core/Civi/Core/CiviEventDispatcher.php:18
If civicrm is disabled site works again.