Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\HeaderBag" not found in C:\xampp\htdocs\adminlte3\vendor\symfony\http-foundation\ResponseHeaderBag 2.php:19
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\adminlte3\vendor\symfony\http-foundation\ResponseHeaderBag 2.php on line 19