title: ConstraintLayout version is obsolete
body: <p>In the Component Tree window,when I  right-click the layout and click Convert layout to <code>ConstraintLayout</code> ,the following error occurred:</p>
  
  <p><a href="https://i.stack.imgur.com/7rcwO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7rcwO.png" alt="enter image description here"></a></p>