Question

我试图将图像加载到滚动条中，但是每次由于错误而没有加载图像时：

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

引发异常时，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）图片资源服务捕获的异常

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

（3）图片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'
);

//usuários

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 =用户（编号：4 名称：'Gui'， imageUrl：“ assets / images / heitor.png” ）;

和图像用于：

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,
                  ),
                  ),
                ],
              ),
            );

图像资源服务捕获的异常

抛出了以下断言来解析图像编解码器：

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

引发异常时，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）图片资源服务捕获的异常

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

（3）图片资源服务捕获的异常

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

Answer 1

这些图像文件似乎不在您的项目中：

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

确保您正在执行以下操作：

将图像添加到文件夹assets/images/
在pubspec.yaml中指定图像
执行flutter packages get /点击Packages get pubspec.yaml /从任何镖文件中点击Get dependencies。
使用Image.asset()或AssetImage()来显示它们。

图片资源服务捕获到异常，以下声明被抛出以解析图片编解码器：

1 个答案: