运行flutter doctor --android-licenses时出现异常

Question

我是一个flutter初学者，在通过命令"flutter - android - license“安装android license时，我得到了如下异常：

Failed to create settings
Exception in thread "main" java.lang.IllegalArgumentException: port out of range:-1
        at java.base/java.net.InetSocketAddress.checkPort(InetSocketAddress.java:153)
        at java.base/java.net.InetSocketAddress.<init>(InetSocketAddress.java:198)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.createAddress(SdkManagerCliSettings.java:177)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.<init>(SdkManagerCliSettings.java:485)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.createSettings(SdkManagerCliSettings.java:152)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.createSettings(SdkManagerCliSettings.java:134)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:58)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:49)

我试了很多次寻找解决方案，但是没有结果。大家能帮帮我吗？非常感谢！

Answer 1

尝试我的答案here希望它能对你有所帮助

或尝试以下步骤：

1. 打开工具> SDK管理器
2. 从左侧选择外观和行为>系统设置> Android SDK
3. 从顶部菜单中选择SDK工具
4. 选中Android SDK命令行工具并单击应用。