build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply plugin: 'com.github.ben-manes.versions'

ext {
    recyclerviewVersion = '1.2.0-alpha01'
    preferenceVersion = '1.1.1'
    materialVersion = '1.1.0'
    lifecycleVersion = '2.2.0'
    lifecycleVersion = '2.2.0'
    leanbackVersion = '1.1.0-alpha03'
    appcompatVersion = '1.1.0'
    annotationVersion = '1.1.0'
}

buildscript {
    ext.kotlin_version = '1.3.71'
    repositories {
        maven {
            url 'https://maven.google.com'
        }
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.3'
        classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:1.0.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.github.ben-manes:gradle-versions-plugin:0.27.0"
    }
}

allprojects {
    repositories {
        maven {
            url 'https://maven.google.com'
        }
        maven {
            url 'https://jitpack.io'
        }
        jcenter()
        google()
    }
    project.ext {
        minSdkVersion = 15
        targetSdkVersion = 28
        compileSdkVersion = 29
    }
}