Notice: Undefined variable: controller in C:\xampp\htdocs\ubicacion\index.php on line 17

Warning: require_once(controller/.controller.php): failed to open stream: No such file or directory in C:\xampp\htdocs\ubicacion\index.php on line 17

Fatal error: require_once(): Failed opening required 'controller/.controller.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\ubicacion\index.php on line 17