Fatal error: Uncaught Error: Class 'PHPUnit\Runner\Version' not found in /var/www/html/simplesamlphp/vendor/symfony/phpunit-bridge/TextUI/Command.php:14
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/symfony/phpunit-bridge/TextUI/Command.php on line 14