buildscript { repositories { jcenter() google() } dependencies { classpath 'com.android.tools.build:gradle:3.4.1' classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5' classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4' } } allprojects { repositories { jcenter() google() } } ext { compileSdkVersion = 28 minSdkVersion = 15 targetSdkVersion = 28 } task clean(type: Delete) { delete rootProject.buildDir }