Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\modules\config\tests\config_override_test\src\ConfigOverriderLowPriority.php on line 3

Fatal error: Interface 'Drupal\Core\Config\ConfigFactoryOverrideInterface' not found in C:\Apache24\htdocs\drupal\core\modules\config\tests\config_override_test\src\ConfigOverriderLowPriority.php on line 14