Fatal error: Uncaught Error: Interface "PHPUnit\Runner\Extension\Extension" not found in /home/qcsvlel/www/core/tests/Drupal/TestTools/Extension/Dump/DebugDump.php:21 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/tests/Drupal/TestTools/Extension/Dump/DebugDump.php on line 21