Flutter Doctor中的"Android许可证状态未知" [英] “Android license status unknown” in flutter doctor

问题描述

在命令行上运行flutter doctor时，Android Sdk出现错误

I am getting an error with Android Sdk when I run flutter doctor on command-line

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, v1.4.9-hotfix.1, on Mac OS X 10.14.4 18E226, locale zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    ✗ Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit
      https://flutter.io/setup/#android-setup for detailed instructions.
[✓] iOS toolchain - develop for iOS devices (Xcode 10.2)
[✓] Android Studio (version 3.3)
[✓] VS Code (version 1.33.1)
[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

在遵循了stackoverflow社区的一些可能的修复程序之后，我仍然无法使它正常工作. 请帮助我.

After following several possible fixes from the stackoverflow community, i still couldn't get it to work. Please i need assistance.

推荐答案

这是对我有用的

• 启动Android Studio&打开SDK管理器(Android Studio的右上角)
• 导航至"SDK"选项卡，然后查找Android SDK平台工具
• 如果已选中，请取消选中它，然后单击应用"(我们正在尝试卸载以前的版本)
• 现在已卸载"SDK工具".让我们重新安装它，方法是选中相应的框并点击应用"
• 打好&重新启动Android Studio
• 在Windows的%USERPROFILE%\AppData\Local\Android\Sdk导航到SDK安装位置，您应该看到一个新文件夹tools 注意:如果您没有看到tools文件夹没有出现紧急情况，那么我会让您满意.
• 打开tools文件夹&导航到bin
• 复制文件夹路径(即C:\Users\USERNAME%\AppData\Local\Android\Sdk\tools\bin)
• 将该路径添加到环境变量中
• 现在，您应该可以在命令行中访问sdkmanager.输入sdkmanager&按Enter键进入CMD.
• 如果得到'sdkmanager' is not recognized as an internal or external command, operable program or batch file.，则在将路径添加到系统环境变量时可能犯了一个错误.解决这个问题.
• 转到Flutter sdk文件夹(即c:/src/flutter)&启动flutter_console.bat文件
• 现在键入命令flutter doctor --android-licenses，它应该可以工作.键入y并按ENTER
接受所有内容
• 别忘了运行flutter doctor

• Launch Android studio & Open the SDK manager (Top-right of Android studio)
• Navigate to SDK Tab and look for Android SDK Platform-Tools
• If it's checked, unchecked it and click 'Apply' (We're trying to uninstall the previous version)
• Now the "SDK Tools" is uninstalled. Let's re-install it by checking the box and clicking 'Apply'
• Hit Ok & Restart Android studio
• Navigate to SDK install location at %USERPROFILE%\AppData\Local\Android\Sdk for windows, you should see a new folder tools Note: If you don't see the tools folder don't panic, i got you covered.
• Open the tools folder & navigate to bin
• Copy the folder path (i.e C:\Users\USERNAME%\AppData\Local\Android\Sdk\tools\bin)
• Add that path to Environmental variables
• Now you should have access to sdkmanager in the command-line. Try it out by typing sdkmanager & hitting enter in CMD.
• If you get 'sdkmanager' is not recognized as an internal or external command, operable program or batch file. you probably made a mistake while adding the path to System Environmental Variables. Fix that.
• Go to Flutter sdk folder (i.e c:/src/flutter) & launch the flutter_console.bat file
• Now type the command flutter doctor --android-licenses and it should work. Accept all by typing y and hitting ENTER
• And don't forget to run flutter doctor

PS:仅当Fix 1对您不起作用时！

• 打开浏览器& goto 仅命令行工具(页面底部)
• 下载适合您平台的软件包
• 解压缩&是的！您应该看到tools文件夹

• 提取后，将tools文件夹复制到C:\Users\USERNAME%\AppData\Local\Android\Sdk

• Open your browser & goto Command line tools only (bottom of the page)
• Download the appropriate package for your platform
• Unzip it & Yes! You should see the tools folder

• After extraction, copy the tools folder to C:\Users\USERNAME%\AppData\Local\Android\Sdk

现在与上面的修订1相同，

打开tools文件夹&导航到bin

Open the tools folder & navigate to bin

• 执行Fix 2中的所有操作
• 打开环境变量，创建一个新变量JAVA_HOME并将其值设置为JRE/bin(从程序文件"中的Android Studio安装位置获取)
• 打开Windows&的命令行类型set JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'. export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'对于Linux

• Do everything in Fix 2
• Open Environmental Variables, Create a new Variable JAVA_HOME and set the value to the JRE/bin (get it from Android studio install location in Program Files)
• Open the command line type set JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee' for windows & export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee' for Linux

就是这样，您现在可以在命令行上运行flutter doctor --android-licenses了；键入y并按Enter，以接受所有许可证.并且不要忘记运行flutter doctor

And that's it you can now run flutter doctor --android-licenses on the command-line; Accept all licenses by typing y and hitting ENTER. And don't forget to run flutter doctor

这篇关于Flutter Doctor中的"Android许可证状态未知"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IT屋！