过去几个月我一直在加载很多图像，但突然间，Flutter 没有加载任何图像。我检查了 pubspect.yaml，资产的名称和颤振医生没有给出任何错误。颤振医生：
[√] Flutter (Channel stable, v1.12.13+hotfix.5, on Microsoft Windows [Versión 10.0.18363.535], locale es-ES)
• Flutter version 1.12.13+hotfix.5 at C:\flutter\flutter
• Framework revision 27321ebbad (6 days ago), 2019-12-10 18:15:01 -0800
• Engine revision 2994f7e1e6
• Dart version 2.7.0
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at C:\Users\Victo\AppData\Local\Android\sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
• All Android licenses accepted.
[√] Android Studio (version 3.5)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 42.1.1
• Dart plugin version 191.8593
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
[√] VS Code (version 1.41.0)
• VS Code at C:\Users\Victo\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.7.1
[√] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 7.0 (API 24) (emulator)
• No issues found!
我的代码：
Widget buildBg(context){
return Stack(
children: <Widget>[
Container(
child: Image.asset(
'assets/images/FondoTiendas claro.jpg',
height: MediaQuery.of(context).size.height,
fit: BoxFit.cover,
),
),
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.bottomRight,
end: Alignment.centerLeft,
colors: [Colors.white.withOpacity(0.5), Colors.transparent, Colors.white.withOpacity(0.5)],
),
),
),
],
);
}
上面的代码只是图像加载的一个例子。所有 image.asset 都给出了一个例外：
══╡ EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE ╞════════════════════════════════════════════════════
I/flutter (32217): The following assertion was thrown resolving an image codec:
I/flutter (32217): Unable to load asset: assets/images/FondoTiendas claro.jpg
I/flutter (32217):
I/flutter (32217): When the exception was thrown, this was the stack:
I/flutter (32217): #0 PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)
I/flutter (32217): <asynchronous suspension>
I/flutter (32217): #1 AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:484:44)I/flutter (32217): #2 AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:469:14)
I/flutter (32217): #3 ImageProvider.resolve.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:327:17)
I/flutter (32217): #4 ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:160:22)
I/flutter (32217): #5 ImageProvider.resolve.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:325:84)
I/flutter (32217): (elided 13 frames from package dart:async)
I/flutter (32217):
I/flutter (32217): Image provider: AssetImage(bundle: null, name: "assets/images/FondoTiendas claro.jpg")
I/flutter (32217): Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#b8720(), name:
I/flutter (32217): "assets/images/FondoTiendas claro.jpg", scale: 1.0)
I/flutter (32217): ════════════════════════
pubspec.yaml：
flutter:
fonts:
- family: Helvetica
fonts:
- asset: assets/fonts/Helvetica.ttf
- family: D-din
fonts:
- asset: assets/fonts/d-din.condensed.ttf
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
assets:
- assets/images/
另外，我已经尝试过flutter clean并在虚拟设备中重新安装该应用程序，但我不断收到错误消息。