Fatal error: Uncaught Error: Class "Drupal\BuildTests\Framework\BuildTestBase" not found in /home/quitpathshareaco/public_html/New/vendor/drupal/core/tests/Drupal/BuildTests/Composer/ComposerValidateTest.php:16 Stack trace: #0 {main} thrown in /home/quitpathshareaco/public_html/New/vendor/drupal/core/tests/Drupal/BuildTests/Composer/ComposerValidateTest.php on line 16