title: Ionic android build error : "All flavors must now belong to a named flavor dimension"
body: <p>I've started a new project on my computer but I'm not able anymore to build for android</p>
  
  <p>When I run </p>
  
  <pre><code>ionic cordova platform run android
  </code></pre>
  
  <p>I get this error : </p>
  
  <pre><code>All flavors must now belong to a named flavor dimension. 
  </code></pre>