OsmAnd/build.gradle

buildscript {
    ext.kotlin_version = '1.2.41'
    repositories {
        maven {
            // Google Maven Repository
            url 'https://maven.google.com'
        }
        mavenCentral()
    }
    dependencies {
        //classpath 'com.android.tools.build:gradle:2.+'
        classpath 'com.android.tools.build:gradle:3.1.+'
        classpath 'com.google.gms:google-services:3.0.0'
        classpath 'com.github.ksoichiro:gradle-eclipse-aar-plugin:0.3.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

apply plugin: 'com.github.ksoichiro.eclipse.aar'    
allprojects {
    repositories {
        mavenCentral()
        maven {
            url "https://maven.google.com"
        }
    }
}