// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { ext.kotlin_version = '1.3.50' repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.5.1' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } // ↓追加 ext.dokka_version = '0.9.17' repositories { jcenter() } dependencies { classpath "org.jetbrains.dokka:dokka-android-gradle-plugin:${dokka_version}" } // ↑追加 } allprojects { repositories { google() jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }