无法将图像放入appbar Flutter web中

flutter:
  assets:
    - assets/images/your_image.png

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Web AppBar Example',
      home: Scaffold(
        appBar: AppBar(
          title: Row(
            children: [
              Image.asset(
                'assets/images/your_image.png', // 本地图像
                height: 40, // 设置图像高度
              ),
              SizedBox(width: 10), // 添加间距
              Text('My App Title'),
            ],
          ),
        ),
        body: Center(
          child: Text('Hello, Flutter Web!'),
        ),
      ),
    );
  }
}

appBar: AppBar(
  title: Row(
    children: [
      Image.network(
        'https://example.com/your_image.png', // 网络图像 URL
        height: 40, // 设置图像高度
      ),
      SizedBox(width: 10), // 添加间距
      Text('My App Title'),
    ],
  ),
),