buildscript { repositories { google() mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:8.13.0' classpath 'com.google.gms:google-services:4.4.4' } } apply from: "variables.gradle" allprojects { repositories { google() mavenCentral() maven { url 'https://jitpack.io' } // ✅ Required for usb-serial } } task clean(type: Delete) { delete rootProject.buildDir }