[console error] Unexpected javascript error from running app

[gjj-cool]

Relevant console output

Script error.

When did the error happen?

Script error.

Your Dart code

import 'package:flutter/material.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '九九乘法表',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('九九乘法表'),
        ),
        body: const MultiplicationTablePage(),
      ),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return SingleChildScrollView(
      padding: const EdgeInsets.all(16.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          for (int i = 1; i <= 9; i++)
            Padding(
              padding: const EdgeInsets.symmetric(vertical: 4.0),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.start,
                crossAxisAlignment: CrossAxisAlignment.baseline,
                textBaseline: TextBaseline.alphabetic,
                children: <Widget>[
                  for (int j = 1; j <= i; j++)
                    Padding(
                      padding: const EdgeInsets.only(right: 16.0),
                      child: Text(
                        '$j x $i = ${i * j}',
                        style: const TextStyle(fontSize: 18, color: Colors.deepPurple),
                      ),
                    ),
                ],
              ),
            ),
        ],
      ),
    );
  }
}

What OS did this error occur on?

No response

What browser(s) did this error occur on?

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Do you have any additional information?

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