此问题的解决方案我删除了JDK13。我安装了JDK 8。我为Flutter SDK提供了环境变量。在用户变量中扑C：\ flutter \ bin
我给出了JAVA_HOME的环境变量。在系统变量中JAVA_HOMEC：\程序文件\ Java \ jdk1.8.0_241
然后，我接受了cmd的Android许可证。（颤抖的医生--android-licenses）
现在，我可以使用抖动连接。问题已经解决了。谢谢。
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当我将连接性添加到应用程序的pubspec.yaml中时，我无法调试或发布到我的应用程序>
Flutter Doctor
[flutter] flutter doctor -v
[√] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.657], locale tr-TR)
• Flutter version 1.12.13+hotfix.8 at C:\flutter
• Framework revision 0b8abb4724 (9 days 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 C:\Users\Faruk Aydin\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\Java\jdk-13.0.2\bin\java
• Java version Java(TM) SE Runtime Environment (build 13.0.2+8)
X Android license status unknown.
Try re-installing or updating your Android SDK Manager.
See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.
[!] 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
X Unable to find bundled Java version.
• Try updating or re-installing Android Studio.
[√] VS Code (version 1.42.1)
• VS Code at C:\Users\Faruk Aydin\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.8.1
[√] Connected device (1 available)
• Redmi 8A • f12007c00606 • android-arm • Android 9 (API 28)
! Doctor found issues in 2 categories.
exit code 0
针对此问题的解决方案，我删除了JDK13。安装了JDK8。为Flutter SDK提供了环境变量。在用户变量flutter C：\ flutter \ bin中，我给了环境变量...
我删除了JDK13。我安装了JDK 8。
您需要在Mac用户名下创建一个全局文件。只需按照下面的描述创建一个.bashprofile文件：