关于gradle：对等方未通过身份验证：在Android Studio中构建应用时出错

peer not authenticated: Error while building app in Android Studio

我一直在尝试构建使用来自fabric.io的crashlytics的应用程序。
但是由于以下提到的错误，构建失败。

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Executing tasks: [clean, :app:generateDebugSources, :app:generateDebugAndroidTestSources]

Configuration on demand is an incubating feature.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:classpath'.
> Could not resolve io.fabric.tools:gradle:1.+.
Required by:
TestProject18July2016:app:unspecified
> Could not resolve io.fabric.tools:gradle:1.+.
> Failed to list versions for io.fabric.tools:gradle.
> Unable to load Maven meta-data from https://maven.fabric.io/public/io/fabric/tools/gradle/maven-metadata.xml.
> Could not GET 'https://maven.fabric.io/public/io/fabric/tools/gradle/maven-metadata.xml'.
> peer not authenticated

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 1.367 secs

我的互联网在代理服务器后面。我都启用了HTTP

经过长时间的努力，我已经找到了解决方法。

实际上是有问题的Maven网址：https://maven.fabric.io/public/io/fabric/tools/gradle/maven-metadata.xml

被重定向到以下网址：
https://s3.amazonaws.com/fabric-artifacts/public/io/fabric/tools/gradle/maven-metadata.xml

以某种方式在Android Studio中，此重定向失败。因此，在应用程序build.gradle文件中，我替换了Maven网址。
来自

1	maven { url 'https://maven.fabric.io/public' }

至

1	maven { url 'http://s3.amazonaws.com/fabric-artifacts/public' }

哪个解决了我的问题。