title: Virtual Device Configuration: "A system image must be selected to continue"
body: <p>I have installed the newer Android Studio on my new Asus computer, but
  when I try to run the emulator via the android virtual device manager
  and create a virtual device, I get an error every time like this:</p>
  <p><img src="https://i.stack.imgur.com/H8QKu.png" alt="Screen shot of AVD Manager Virtual Device Configuration screen" /></p>