build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
        mavenCentral()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.1'
        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}
ext {
    versionCode = 1
    versionName = '1.0.0'

//Sdk and tools
    midSdkVersion = 17
    targetSdkVersion = 26
    compileSdkVersion = 26
    buildToolsVersion = '27.0.0'

    supportLibrary = '27.0.2'
    constraint_layout = '1.0.2'


}