title: layoutlib.jar is missing! : Plug-in "com.android.ide.eclipse.adt"
body: <p>I am getting an error in graphical layout of xml after installing the updates from :</p>
  
  <ul>
  <li><p>SDK Manager</p></li>
  <li><p>help->check for updates</p></li>
  <li><p>help-> Install new Software...</p></li>
  </ul>
  
  <p><img src="https://i.stack.imgur.com/G32JD.png" alt="enter image description here"></p>
  
  <p>Tell me how to get rid away from this problem ?</p>
  
  <p>Thanks</p>