title: Android Studio 3.0 Flavor Dimension Issue
body: <p>Upgraded to Studio Canary build. My previous project of Telegram Messenger is giving following error.</p>
  
  <blockquote>
    <p>Error:All flavors must now belong to a named flavor dimension. The flavor 'armv7' is not assigned to a flavor dimension. Learn more at <a href="https://d.android.com/r/tools/flavorDimensions-missing-error-message.html" rel="noreferrer">https://d.android.com/r/tools/flavorDimensions-missing-error-message.html</a></p>
  </blockquote>
  
  <p>What should I do? I have already seen that link but couldn't understand what to do. I have 3 build variants now, release,debug and foss.</p>