我已经尝试了所有的方法，但我的flutter应用程序仍然不能运行...installed(也是过时的Sdk工具)

Question

我已经尝试了所有的方法，但我的flutter应用程序仍然不能运行...installed(也是过时的Sdk工具)

回溯到这里-

C:\Users\Sharath>flutter doctor -v
Downloading Gradle Wrapper...                                       1.2s
[√] Flutter (Channel stable, 1.20.2, on Microsoft Windows [Version 10.0.10586], locale en-US)
    • Flutter version 1.20.2 at C:\src\flutter
    • Framework revision bbfbf1770c (7 weeks ago), 2020-08-13 08:33:09 -0700
    • Engine revision 9d5b21729f
    • Dart version 2.9.1

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at C:\Users\Sharath\AppData\Local\Android\Sdk
    • Platform android-30, build-tools 30.0.2
    • ANDROID_HOME = C:\Users\Sharath\AppData\Local\Android\Sdk
    • Java binary at: C:\Program Files\Android\Android Studio1\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    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/docs/get-started/install/windows#android-setup for detailed instructions.

[√] Android Studio (version 4.0)
    • Android Studio at C:\Program Files\Android\Android Studio1
    • Flutter plugin version 48.1.2
    • Dart plugin version 193.7547
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] VS Code (version 1.49.1)
    • VS Code at C:\Users\Sharath\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.15.0

[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

当我在android演播室中运行时，它显示-

Downloading Gradle Wrapper...
Downloading Gradle Wrapper...
Failed to delete "C:\src\flutter\bin\cache\downloads\storage.googleapis.com\flutter_infra\gradle-wrapper\fd5c1f2c013565a3bea56ada6df9d2b8e96d56aa\gradle-wrapper.tgz". Please delete manually. FileSystemException: Cannot delete file, path = 'C:\src\flutter\bin\cache\downloads\storage.googleapis.com\flutter_infra\gradle-wrapper\fd5c1f2c013565a3bea56ada6df9d2b8e96d56aa\gradle-wrapper.tgz' (OS Error: The system cannot find the path specified.
, errno = 3)
Launching lib\main.dart on RMX1971 in debug mode...
Running Gradle task 'assembleDebug'...
Exception: Unable to locate gradlew script. Please check that C:\Users\Sharath\Desktop\flutter_app\android\gradlew.bat exists or that C:\Users\Sharath\Desktop\flutter_app\android can be read.

Answer 1

看起来你这里有几个问题：

安卓版本OpenJDK运行时环境(build 1.8.0_242-release-1644-b01) X

1. Java许可证状态未知。尝试重新安装或更新Android SDK Manager。请确保您正在使用的android Studio上的计算机上的所有Android sdks都接受许可证。

您可以运行此命令以接受所有许可证。sdkmanager yes|sdkmanager--许可

有关更多信息，请查看社区维基的答案：Automatically accept all SDK licences

1. ，是不是只有安卓给你带来了问题？如果是这样，那么看起来你可能不得不从你的解决方案中删除安卓项目，并重新创建它们。

您可以运行此命令来执行此操作: flutter create。

既然你已经启用了Android配置，那就应该没问题了。执行此操作之前，请确保备份项目

1. 从稳定通道升级颤动版本。最新版本是1.22.0。在此处运行以下命令：flutter upgrade doctor.

，然后运行以下命令：flutter upgrade

完成后，清理您的项目，并通过正在开发flutter的IDE重新构建解决方案。