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

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