title: Attribute "orientation" has already been defined when using GridLayout & ConstraintLayout together
body: <p>While using GridLayout and ConstraintLayout together i get the following error</p>
  
  <pre><code>Error:(115) Attribute "orientation" has already been defined
  </code></pre>
  
  <p>The problem is because both of the libraries use this </p>
  
  <pre><code>&lt;attr name="orientation"&gt;
  </code></pre>
  
  <p>Does anyone know of a workaround?</p>