解决Unknown host 'jcenter.bintray.com'问题

转自 解决Unknown host ‘jcenter.bintray.com’问题
1、如图报错

2、原因:

build.gradle中jcenter()或maven()被墙了。

3、解决:

方法一:

使用开源中国的maven库:

阿里云的:http://maven.aliyun.com/nexus/content/groups/public/

在项目根目录下的build.gradle中添加如下:

buildscript {

    repositories {
        maven{url 'http://maven.aliyun.com/nexus/content/groups/public/'}
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'


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

allprojects {
    repositories {
        maven{url 'http://maven.aliyun.com/nexus/content/groups/public/'}
        google()
        jcenter()
    }
}

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

同时,放在jcenter()前,保证先访问maven中的链接。

方法二:

jcenter()所访问的链接是:https://jcenter.bintray.com/

修改https为 http协议下载,即:http://jcenter.bintray.com/

buildscript {

    repositories {
        google()
        jcenter(){url 'http://maven.aliyun.com/nexus/content/groups/public/'}
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'


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

allprojects {
    repositories {
        google()
        jcenter(){url 'http://maven.aliyun.com/nexus/content/groups/public/'}
    }
}

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

方法二亲测无效。。。。

但有时候确实可以通过http://jcenter.bintray.com/访问到远程仓库。

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