apply plugin: 'com.android.application' apply plugin: 'kotlin-android' ext { supportLibVersion = '26.0.1' } android { compileSdkVersion 26 buildToolsVersion "26.0.1" defaultConfig { applicationId "com.example.android.downloadablefonts" minSdkVersion 14 targetSdkVersion 26 } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } dependencies { compile "com.android.support:appcompat-v7:$supportLibVersion" compile "com.android.support:design:$supportLibVersion" compile "com.android.support:cardview-v7:$supportLibVersion" } } repositories { mavenCentral() } dependencies { compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" }