android - 建立Android Studio项目时发生逾时错误

Question

我有一台在ZScaler防火墙后运行的Windows 10 PC，并且正在使用代理。当我使用Android Studio 3.2.1构建任何项目(甚至Android Studio的基本模板)时，我都会从Gradle中收到此错误(我尝试了几乎所有操作……均未成功):

FAILURE: Build failed with an exception.

• What went wrong: A problem occurred configuring root project 'XXXX'.

  Could not resolve all artifacts for configuration ':classpath'. Could not resolve com.android.tools.build:gradle:3.2.1. Required by: project : Could not resolve com.android.tools.build:gradle:3.2.0. Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'. Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'. Connect to dl.google.com:443 [dl.google.com/216.58.205.78] failed: Connection timed out: connect Could not resolve com.android.tools.build:gradle:3.2.0. Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'. Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'. Connect to jcenter.bintray.com:443 [jcenter.bintray.com/5.153.35.248] failed: Connection timed out: connect

• 尝试:使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行，以获取更多日志输出。与--scan一起运行以获取完整的见解。
• 在https://help.gradle.org上获得更多帮助


42秒内失败

Answer 1

Connect to dl.google.com:443 [dl.google.com/216.58.205.78] failed
正如您已经提到的防火墙，您应该确保可以访问所有必需的服务器。

除此之外，我对gradle 3.20有点困惑，而您的构建工具是3.2.1，它指向最新的android studio版本。

请确保所有版本都正确设置。

1)您的build.gradle(项目级别，不在app文件夹中)

文件中的构建脚本应如下所示:
位置1上的google()存储库

buildscript {
repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.2.1'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}
}

2)位于项目的gradle-wrapper.properties目录中的gradle\wrapper文件应指向4.6版本，这是Studio 3.2.1的最新版本

#Sun Apr 29 08:09:29 CEST 2018
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip