Warning: Unsupported declare 'strict_types' in D:\xampp\htdocs\prdk-wb-be\vendor\guzzlehttp\promises\src\TaskQueue.php on line 3

Fatal error: Default value for parameters with a class type hint can only be NULL in D:\xampp\htdocs\prdk-wb-be\vendor\guzzlehttp\promises\src\TaskQueue.php on line 23