build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply from: "config.gradle"

buildscript {
    ext.kotlin_version = '1.2.50'
    repositories {
        google()
        maven{ url'http://maven.aliyun.com/nexus/content/groups/public/'}
        mavenCentral();
        jcenter()
    }
    dependencies {
        //fixbug https://stackoverflow.com/questions/49518223/3rd-party-gradle-plug-ins-may-be-the-cause
        classpath 'com.android.tools.build:gradle:3.1.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        //https://blog.csdn.net/u012678179/article/details/52173444
        //https://jitpack.io/docs/ANDROID/
        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1' // Add this line

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

allprojects {
    repositories {
        google()
        maven{ url'http://maven.aliyun.com/nexus/content/groups/public/'}
        mavenCentral();
        jcenter()
        maven { url 'https://jitpack.io' }
        maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
    }
}

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