build.gradle

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

buildscript {
    repositories {
        jcenter()
        maven { url "https://jitpack.io" }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.4'
        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        maven { url "https://jitpack.io" }
    }
    project.ext {
        compileSdkVersion=25
        targetSdkVersion=25
        buildToolsVersion='25.0.2'
        minSdkVersion=15
        versionCode = 17
        versionName = "3.0"
    }
}

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