build.gradle

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

buildscript {
    ext.kotlin_version = '1.1.4-3'
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}
allprojects {
    repositories {
        mavenCentral()
        jcenter()
        google()
        maven { url "https://jitpack.io" }
    }
}

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

ext {
    // Sdk and tools
    compile_sdk_version = 26
    build_tools_version = "27.0.2"
    min_sdk_version = 15
    target_sdk_version = 26

    // App dependencies
    support_version = '27.1.0'
}