build.gradle

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

buildscript {
    ext.kotlin_version = '1.3.0'
    repositories {
        maven {
            url "https://maven.aliyun.com/repository/google"
        }
        maven {
            url "https://maven.aliyun.com/repository/jcenter"
        }
        mavenLocal()
        mavenCentral()
        google()
        maven {
            url 'http://4thline.org/m2'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0"

        // 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/google"
        }
        maven {
            url "https://maven.aliyun.com/repository/jcenter"
        }
        maven { url "https://jitpack.io" }
        mavenCentral()
        maven {
            url 'http://4thline.org/m2'
        }
    }
}

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