plugins { id 'com.android.library' } android { compileSdkVersion rootProject.ext.compileSdkVersion defaultConfig { minSdkVersion rootProject.ext.minSdkVersion targetSdkVersion rootProject.ext.targetSdkVersion } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' } } } dependencies { implementation "androidx.appcompat:appcompat:$rootProject.appcompatVersion" }