 <p><strong>try:</strong></p> <pre><code> buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:2.2.0' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { jcenter() } } task clean(type: Delete) { delete rootProject.buildDir } </code></pre>