【Flutter】運(yùn)行安卓報(bào)錯：flutter doctor --android-licenses報(bào)錯

1、flutter doctor --android-licenses報(bào)錯

odd@Mac-mini flutterdemo % flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel master, 2.1.0-11.0.pre.145, on macOS 12.0.1 21A559 darwin-x64, locale zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
    ? Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[?] Xcode - develop for iOS and macOS
[?] Chrome - develop for the web
[!] Android Studio (version 2020.3)
    ? Unable to find bundled Java version.
[?] IntelliJ IDEA Ultimate Edition (version 2020.1)
[?] VS Code (version 1.62.3)
[?] Connected device (3 available)

! Doctor found issues in 2 categories.
odd@Mac-mini flutterdemo % flutter doctor --android-licenses
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
        at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
        at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
        at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 5 more

解決方式：Install Android SDK Command-line tools
MAC上： Android Studio->Preference

截屏.png

2翩迈、Unable to find bundled Java version.

路徑不對愕难，需要調(diào)整
在安裝的flutter路徑里：flutter/packages/flutter_tools/lib/src/android/android_studio.dart

android_studio.dart代碼里加載設(shè)置如下：

final String javaPath = globals.platform.isMacOS ?
        globals.fs.path.join(directory, 'jre', 'jdk', 'Contents', 'Home') :
        globals.fs.path.join(directory, 'jre');

Android Studio的路徑里盛杰，沒有jdk文件境肾，如下：

1蕴茴、在Find里的應(yīng)用程序里十嘿，選中Android Studio, 然后右鍵顯示包內(nèi)容；
2屈嗤、Contents->jre->Contents,
3潘拨、發(fā)現(xiàn)jre文件夾里沒有jdk這個(gè)文件夾，
4饶号、在jre文件夾里新建jdk文件铁追，并把jre中的Contents文件夾整個(gè)復(fù)制添加到j(luò)dk里，
5茫船、添加后jre下有兩個(gè)文件Contents琅束，jdk, 路徑：
Contents->jre->Contents,
Contents->jre->jdk->Contents,