1buildscript {
2    ext {
3        compileSdkVersion = 27
4        minSdkVersion = 21
5        targetSdkVersion = 27
6
7        kotlinVersion = '1.3.11'
8        supportLibVersion = '27.0.2'
9    }
10    repositories {
11        google()
12        jcenter()
13    }
14    dependencies {
15        classpath 'com.android.tools.build:gradle:3.3.0'
16        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
17    }
18}
19
20allprojects {
21    repositories {
22        google()
23        jcenter()
24    }
25}
26
27task clean(type: Delete) {
28    delete rootProject.buildDir
29}
30