Notice: Undefined variable: router in D:\xampp\htdocs\api_patient\routes\web.php on line 16

Fatal error: Uncaught Error: Call to a member function get() on null in D:\xampp\htdocs\api_patient\routes\web.php:16 Stack trace: #0 {main} thrown in D:\xampp\htdocs\api_patient\routes\web.php on line 16