Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\modules\package_manager\src\Validator\PhpTufValidator.php on line 3

Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in C:\Apache24\htdocs\drupal\core\modules\package_manager\src\Validator\PhpTufValidator.php on line 50