Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/hagi/public_html/virtual/vendor/symfony/event-dispatcher/Tests/EventDispatcherTest.php:20 Stack trace: #0 {main} thrown in /home/hagi/public_html/virtual/vendor/symfony/event-dispatcher/Tests/EventDispatcherTest.php on line 20