kotlin for android studio config

app_build.gradle

apply plugin: 'com.android.application'
apply	plugin:	'kotlin-android'
apply	plugin:	'kotlin-android-extensions'
android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "zl.com.kotlinapp"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile "com.android.support:appcompat-v7:$support_version"
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support:recyclerview-v7:25.3.1'
    compile	"org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    compile	"org.jetbrains.anko:anko-sdk15:$anko_version"
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha9'
    compile "org.jetbrains.anko:anko-appcompat-v7:$anko_version"
    compile "org.jetbrains.anko:anko-design:$anko_version"
    compile "org.jetbrains.anko:anko-recyclerview-v7:$anko_version"
    testCompile 'junit:junit:4.12'
}

build.gradle

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

buildscript {
    ext.support_version = '25.3.1'
    ext.kotlin_version	=	'1.1.1'
    ext.anko_version	=	'0.9.1'
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.1'
        classpath	"org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        maven { url 'https://dl.bintray.com/jetbrains/anko' }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}