Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\modules\language\tests\src\Functional\Rest\ConfigurableLanguageXmlBasicAuthTest.php on line 3

Fatal error: Class 'Drupal\Tests\language\Functional\Rest\ConfigurableLanguageResourceTestBase' not found in C:\Apache24\htdocs\drupal\core\modules\language\tests\src\Functional\Rest\ConfigurableLanguageXmlBasicAuthTest.php on line 13