Question might be misleading, but I’m currently working on a project where I use Get.toNamed a lot and I’m sending some data every time. But, when I hot reload the changes I get

════════ Exception caught by widgets library ═══════════════════════════════════
type 'Null' is not a subtype of type `int` 

and I’m changing route with

onTap: () {
    print(_sliderValue);
    Get.toNamed('/stations/detail/booking', arguments: {
        'duration': _sliderValue,
    });
},

Is there any proper way of not losing data while routing between pages or hot reload?