Warning: Undefined variable $app in C:\xampp\htdocs\np\src\dependencies.php on line 4

Fatal error: Uncaught Error: Call to a member function getContainer() on null in C:\xampp\htdocs\np\src\dependencies.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\np\src\dependencies.php on line 4