Fatal error: Uncaught Error: Class "Drupal\TestTools\PhpUnitCompatibility\RunnerVersion" not found in /home/qcsvlel/www/core/tests/Drupal/Tests/PhpUnitCompatibilityTrait.php:12 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/tests/Drupal/Tests/PhpUnitCompatibilityTrait.php on line 12