在颤振中未加载图像

Question

试图在flutter中加载图像，但无法做到这一点，得到以下错误

I/Flutter(3214):IMAGE RESOURCE SERVICE捕获的异常（3214）：引发以下断言解析图像编解码器：I/Flutter（3214）：无法加载资产：资产/test.jpg I/Flutter（3214）：I/Flutter（3214）：引发异常时，这是堆栈:I/Flutter(3214):#0 PlatformAssetBundle.load（包:Flutter/src/services/Asset_bundle.dart）:221:7)I/Flutter(3214):I/Flutter(3214):#1
AssetbundleImageProvider._loadAsync（包:Flutter/src/painting/image_Provider.dart:429:44)I/Flutter(3214):I/Flutter(3214):#2
AssetbundleImageProvider.load（包:Flutter/src/painting/image_Provider.dart:414:14)I/Flutter(3214):#3ImageProvider.resolve.（包:flutter/src/painting/image_provider.dart:267:86)I/flutter(3214):#4 imageache.putifabast（包:flutter/src/painting/image_cache.dart:143:20)I/flutter(3214):#5 imageprovider.resolve。（包:flutter/src/painting/image_provider.dart:267:63)I/flutter(3214):（从包dart：async中删除8帧）I/flutter(3214):I/flutter(3214):图像提供者：AssetImage（bundle：null,名称：“Assets/test.jpg”）I/flutter(3214):图像键：AssetBundleImageKey（bundle：PlatformAssetBundle#81de5()，名称：“Assets/test.jpg”，比例：I/flutter(3214):1.0):

主飞镖

lass MyApp extends StatelessWidget {
Widget build(BuildContext context) {
    return MaterialApp(
    home: Scaffold(
    appBar: AppBar(
      title: Text('EasyList'),
    ),
    body: Card(child: Column(children: < Widget > [
      Image.asset('assets/test.jpg'),
    ],),),
   ),
  );
 }
}

pubspec.yaml

flutter:
  uses-material-design: true

assets:
  - assets/test.jpg

Answer 1

在单词assets:前面需要两个空格，在破折号前面需要另外两个空格（总共4）。

flutter:
  uses-material-design: true

  assets:
    - assets/test.jpg