Android Studio Gradle 错误 - 协议系列不可用 [英] Android Studio Gradle Error - Protocol Family Unavailable

问题描述

所以我对 Android 开发比较陌生.并且一直在我的电脑上安装 Android Studio.我在 Mac 上设置得很好.当我在 Windows 8.1 桌面上下载并安装它时，gradle 构建似乎每次都失败.带有一条错误消息，指出协议系列不可用.我尝试了很多方法，包括卸载和重新安装 Android Studio.

So I am relatively new to Android dev. and have been getting Android Studio set up on my computers. I have it set up just fine on my Mac. When I downloaded and installed it on my Windows 8.1 desktop the gradle build seems to fail every time. With an error message stating that the Protocol Family Unavailable. I've tried several things including uninstalling and reinstalling Android Studio.

注意:我确实尝试了这里所说的工作 Gradle 项目刷新失败 - 协议系列不可用但它并没有为我解决问题.

NOTE: I did try what was said to work here Gradle project refresh failed - Protocol family unavailable yet it did not solve the problem for me.

推荐答案

我也遇到了这个问题，引用的线程对我也不起作用.

I also had this problem and the referenced thread also didn't work for me.

有效的是设置 _JAVA_OPTIONS 环境变量以使 Java 使用 IPv4.

What did work was setting _JAVA_OPTIONS environment variable to make Java use IPv4.

_JAVA_OPTIONS = -Djava.net.preferIPv4Stack=true

_JAVA_OPTIONS = -Djava.net.preferIPv4Stack=true

请注意，Android Studio 在 vmoptions 文件中设置了此变量.但是由于某种原因，它并没有被 Android Studio 启动的 Java VM 用来运行 Gradle 守护进程.

Note that Android Studio sets this variable in the vmoptions file. But for some reason, it isn't used by the Java VM started by Android Studio to run Gradle daemon.

在我这样做之后，一切开始正常，Gradle 可以构建我的项目.

After I did that, everything started to work ok and Gradle could build my project.

希望能帮到你.

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