title: Error update Android Studio 3 on Mac (Re-download dependencies and sync project requires network)
body: <p>I upgraded to version 3 and it appeared<br />
  Now I do not do anything<br />
  I've even cleaned it up again<br />
  It did not work right now</p>
  <p><img src="https://i.stack.imgur.com/xLQVM.png" alt="enter image description here" /></p>
  <p><img src="https://i.stack.imgur.com/jGjIb.jpg" alt="enter image description here" /></p>