error: The named parameter 'panel' isn't defined.

[sourabhdawari]

adding inline widget or separate widget is not working for me.

class ShowcaseView extends StatelessWidget {
const ShowcaseView({Key? key}) : super(key: key);

@OverRide
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("SlidingUpPanelExample"),
),
body: SlidingUpPanel(
panel: Center(
child: Text("This is the sliding Widget"),
),
body: Center(
child: Text("This is the Widget behind the sliding panel"),
),
),
);
}
}