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'
    ext.buildToolsVersionCode = '26.0.1'
    ext.supportVersion = '26.0.2'
    repositories {
        jcenter()
        maven {
            url 'http://oss.jfrog.org/artifactory/oss-snapshot-local'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "io.realm:realm-gradle-plugin:3.7.2"

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

allprojects {
    repositories {
        jcenter()
        maven { url "https://maven.google.com" }
        maven {
            url 'http://oss.jfrog.org/artifactory/oss-snapshot-local'
        }
    }
}

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