Warning: Unsupported declare 'strict_types' in D:\xampp\htdocs\prdk-wb-be\vendor\league\config\src\ConfigurationBuilderInterface.php on line 3

Fatal error: Interface 'League\Config\MutableConfigurationInterface' not found in D:\xampp\htdocs\prdk-wb-be\vendor\league\config\src\ConfigurationBuilderInterface.php on line 19