Windows上配置Flutter时遇到 Android license status unknown

运行flutter doctor，发现Android license status unknown

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 1.22.5, on Microsoft Windows [Version 10.0.19041.685], locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[!] Android Studio (version 4.1.0)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] VS Code (version 1.52.1)
[!] Connected device
    ! No devices available

运行flutter doctor --android-licenses报错

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
        at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
        at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
        at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        ... 5 more

看起来是java的问题。现在用javac -version查看jdk版本

javac 12.0.2

版本过高，需要换成jdk8。

重新下载jdk8之后改变环境变量。

通过where java查找有java path的地方，删除3个java文件。

重启之后，检查jdk版本java -version

java version "1.8.0_271"
Java(TM) SE Runtime Environment (build 1.8.0_271-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.271-b09, mixed mode)

再运行flutter doctor。报错变成了 Android licenses not accepted

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 1.22.5, on Microsoft Windows [Version 10.0.19041.685], locale en-US)

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    X Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses
[!] Android Studio (version 4.1.0)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] VS Code (version 1.52.1)
[!] Connected device
    ! No devices available

! Doctor found issues in 3 categories.

flutter doctor --android-licenses之后，一路输入y即可。

最后的结果：

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 1.22.5, on Microsoft Windows [Version 10.0.19041.685], locale en-US)

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[!] Android Studio (version 4.1.0)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] VS Code (version 1.52.1)
[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

 

 

 

本文地址：https://blog.csdn.net/weixin_45440502/article/details/112554206