Scrollable in Scrollable error

main.dart

import 'package:flutter/cupertino.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    const title = 'Scrollable in Scrollable';

    return CupertinoApp(
      title: title,
      home: CupertinoPageScaffold(
        child: ListView(
          children: [
            ListView(
              children: [
                Text('Hello world'),
              ],
            ),
          ],
        ),
      ),
    );
  }
}

output.txt

Vertical viewport was given unbounded height.
Viewports expand in the scrolling direction to fill their container. In this case, a vertical viewport was given an unlimited amount of vertical space in which to expand. This situation typically happens when a scrollable widget is nested inside another scrollable widget.
If this widget is always nested in a scrollable widget there is no need to use a viewport because there will always be enough vertical space for the children. In this case, consider using a Column or Wrap instead. Otherwise, consider using a CustomScrollView to concatenate arbitrary slivers into a single scrollable.