问题描述
我在运行Android flutter应用程序时遇到问题.昨天，我的应用成功运行，没有任何问题.但是今天，每当我尝试运行我的应用程序时，它始终会为我提供下一个输出，并且不会运行.调试控制台会继续打印这些内容:
I have a problem running my android flutter app.Yesterday, my app ran successfully without any problem.But today, whenever I try to run my app, it always gives me the next outputs and doesn't run.The debug console keeps printing these :
Launching lib/main.dart on SM A405FN in debug mode...
✓ Built build/app/outputs/apk/debug/app-debug.apk.
D/FlutterActivity(29168): Using the launch theme as normal theme.
D/FlutterActivityAndFragmentDelegate(29168): Setting up FlutterEngine.
D/FlutterActivityAndFragmentDelegate(29168): No preferred FlutterEngine was provided. Creating a new FlutterEngine for this FlutterFragment.
D/FlutterActivityAndFragmentDelegate(29168): Attaching FlutterEngine to the Activity that owns this Fragment.
奇怪的是，我的应用程序一直在手机上停止运行.
And weirdly, my app keeps stopping on my phone.
如果您想知道我的flutter doctor -v，我可以向您保证一切都很好.
If you wonder about my flutter doctor -v, I can assure you that everything is fine.
[flutter] flutter doctor -v
[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Linux, locale en_US.UTF-8)
• Flutter version 1.12.13+hotfix.8 at /home/henimbola/dev_env/flutter
• Framework revision 0b8abb4724 (3 weeks ago), 2020-02-11 11:44:36 -0800
• Engine revision e1e6ced81d
• Dart version 2.7.0
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /home/henimbola/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• Java binary at: /home/henimbola/IDEs/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.
[✓] Android Studio (version 3.6)
• Android Studio at /home/henimbola/IDEs/android-studio
• Flutter plugin version 43.0.2
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
[!] IntelliJ IDEA Ultimate Edition (version 2019.2)
• IntelliJ at /home/henimbola/IDEs/idea-IU-192.6603.28
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• For information about installing plugins, see
https://flutter.dev/intellij-setup/#installing-the-plugins
[✓] VS Code (version 1.42.1)
• VS Code at /usr/share/code
• Flutter extension version 3.8.1
[✓] Connected device (1 available)
• SM A405FN • R58M66L8L9J • android-arm64 • Android 9 (API 28)
! Doctor found issues in 1 category.
exit code 0
如果有人可以帮助我，请.我一直在互联网上搜索.
If anyone can help me please. I've been searching around the internet.
推荐答案
在升级到最新版本的Flutter之后，这个问题发生在我身上.我通过运行以下命令解决了该问题:
This problem happened to me after I upgraded to the latest version of Flutter.I solved it by running the command:
flutter clean
这解决了我的问题.
这篇关于D/FlutterActivityAndFragmentDelegate(29168):没有提供首选的FlutterEngine.为此FlutterFragment.Flutter创建一个新的FlutterEngine:的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！