title: Where is the build.gradle file located for my Android project?
body: <p>Where is the <code>build.gradle</code> file located for my Android project?</p>
  <p>I'm trying to follow along with <a href="http://developer.android.com/tools/support-library/setup.html#add-library" rel="nofollow noreferrer">this tutorial</a>, but I can't make necessary changes to my <code>build.gradle</code> file to use the support library.</p>