AS提示：Connection timed out: connect. If you are behind an HTTP proxy

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当使用手机热点时，Android Studio (AS) 出现连接超时错误，提示需要配置HTTP代理。解决方法是在buildscript和allprojects的repositories中添加阿里云的Maven仓库URL，包括jcenter, google, public和mapr-public。添加后保存并重启AS，问题即可得到解决。

AS使用手机热点时 IDE提示：Connection timed out: connect. If you are behind an HTTP proxy, please configure the proxy settings either in IDE or Gradle.

分别在buildscript中的repositories和allprojects中的repositories添加如下代码

maven() {
url 'https://maven.aliyun.com/repository/jcenter'
}
maven(){
url 'https://maven.aliyun.com/repository/google'
}
maven {
url 'https://maven.aliyun.com/repository/public'
}
maven {
url 'https://maven.aliyun.com/repository/mapr-public'
}
添加完成后保存，重启AS

AS恢复正常

参考build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    
    repositories {
        maven() {
            url 'https://maven.aliyun.com/repository/jcenter'
        }
        maven(){
            url 'https://maven.aliyun.com/repository/google'
        }
        maven {
            url 'https://maven.aliyun.com/repository/public'
        }
        maven {
            url 'https://maven.aliyun.com/repository/mapr-public'
        }
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.0'
        

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

allprojects {
    repositories {
        maven() {
            url 'https://maven.aliyun.com/repository/jcenter'
        }
        maven(){
            url 'https://maven.aliyun.com/repository/google'
        }
        maven {
            url 'https://maven.aliyun.com/repository/public'
        }
        maven {
            url 'https://maven.aliyun.com/repository/mapr-public'
        }

        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}