图像资源服务捕获的异常，在解析图像编解码器时引发了以下断言：

Question

我正在尝试将图像加载到滚动中，但每次由于错误而无法加载图像：

Exception caught by image resource service The following assertion was thrown resolving an image codec:
Unable to load asset: assets/images/jorge.png

当异常被抛出时，这是堆栈：

0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:464:44)

2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:449:14)
...

Image provider: AssetImage(bundle: null, name: "assets/images/jorge.png")

Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#dd41f(), name: "assets/images/jorge.png", scale: 1.0)

(2) 图像资源服务捕获的异常

 Unable to load asset: assets/images/heitor.png

(3) 图像资源服务捕获的异常

 Unable to load asset: assets/images/john.png

 I/chatty  ( 8763): uid=10206(com.festapp.flutter_app_fest) identical 5 lines
 E/AccessibilityBridge( 8763): VirtualView node must not be the root node.


 flutter clean was used, besides exchanging images

 final User currentUser = User(
  id: 0,
  name: 'Current User',
  imageUrl: 'assets/images/greg.png'
);

//使用方法

final User Jorge = User(
  id: 1,
  name: 'Jorge',
   imageUrl: 'assets/images/jorge.png'
);

final User John= User(
   id: 2,
   name: 'John',
   imageUrl: 'assets/images/john.png'
); 

final User Heitor = User(
   id: 3,
   name: 'Heitor',
   imageUrl: 'assets/images/heitor.png'

); 最终用户 Gui = User( 编号：4， 名称：'桂'， imageUrl: '资产/图像/heitor.png' );

以及图片用于：

return Padding(
              padding: EdgeInsets.all(10.0),
              child: Column(
                children: <Widget>[
                  CircleAvatar(
                    radius: 35.0,
                    backgroundImage: AssetImage(favorites[index].imageUrl),
                  ),
                  SizedBox(
                    height: 6.0,
                  ),
                  Text(favorites[index].name, style: TextStyle(
                    color: Colors.blueGrey,
                    fontSize: 16.0,
                    fontWeight: FontWeight.w600,
                  ),
                  ),
                ],
              ),
            );

图片资源服务捕获的异常

在解析图像编解码器时引发了以下断言：

Unable to load asset: assets/images/jorge.png

当异常被抛出时，这是堆栈：

0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:464:44)

2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:449:14)
...
 Image provider: AssetImage(bundle: null, name: "assets/images/jorge.png")
 Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#dd41f(), name: "assets/images/jorge.png", scale: 1.0)

(2) 图像资源服务捕获的异常

Unable to load asset: assets/images/heitor.png

(3) 图像资源服务捕获的异常

Unable to load asset: assets/images/john.png

Answer 1

您的项目中似乎没有这些图像文件：

• assets/images/jorge.png
• assets/images/john.png
• assets/images/heitor.png

确保你正在做这些事情：

• 在文件夹assets/images/中添加图片
• 指定pubspec.yaml中的图片
• 执行flutter packages get/点击Packages get from pubspec.yaml / 在任何 dart 文件中点击 Get dependencies。
• 使用Image.asset() 或AssetImage() 显示它们。

Answer 2

我也遇到了同样的问题， 解决方案是停止 main.dart - 通过单击任务栏中给出的红色按钮 然后重新启动它。 有时，当您将其添加为新鲜时，它无法加载图像