// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.1.4' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } // This will apply compileSdkVersion and buildToolsVersion to any android modules subprojects { subproject -> afterEvaluate { project -> if (!project.name.equalsIgnoreCase("app") && project.hasProperty("android")) { android { compileSdkVersion 27 buildToolsVersion '28.0.3' } } } } allprojects { repositories { mavenLocal() google() jcenter() maven { // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm url "$rootDir/../node_modules/react-native/android" } } }