Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Loader\LoaderInterface" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\symfony\routing\Loader\AttributeClassLoader.php:56 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\symfony\routing\Loader\AttributeClassLoader.php on line 56