Fatal error: Uncaught Error: Class "Drupal\Tests\BrowserTestBase" not found in /home/quitpathshareaco/public_html/New/vendor/drupal/core/modules/language/tests/src/Functional/LanguageConfigurationTest.php:19 Stack trace: #0 {main} thrown in /home/quitpathshareaco/public_html/New/vendor/drupal/core/modules/language/tests/src/Functional/LanguageConfigurationTest.php on line 19