buildscript { repositories { google() mavenCentral() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:7.2.2' } } allprojects { repositories { google() mavenCentral() jcenter() } } ext { minSdkVersion = 21 compileSdkVersion = 30 targetSdkVersion = 30 buildToolsVersion = '30.0.3' } task clean(type: Delete) { delete rootProject.buildDir }