Fatal error: Uncaught Error: Class "Drupal\Tests\locale\Functional\LocaleUpdateBase" not found in /home/qcsvlel/www/core/modules/locale/tests/src/Functional/LocaleTranslationChangeProjectVersionTest.php:15 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/locale/tests/src/Functional/LocaleTranslationChangeProjectVersionTest.php on line 15