title: Can't launch AVD on macOS 10.13
body: <p>I created some AVDs in Android studio 3.0, but I can't launch them. I used the following command to launch them:</p>
  
  <pre><code>./emulator @Nexus_5X_API_17
  </code></pre>
  
  <p>logs:</p>
  
  <pre><code>emulator: WARNING: encryption is off
  Hax is enabled
  Hax ram_size 0x60000000
  Failed to open vm 3
  Failed to create HAX VM
  No accelerator found.
  failed to initialize HAX: Invalid argument
  </code></pre>
  
  <p>And when I reinstalled "Intel x86 Emulator Accelerator(HAXM installer)", the logs:</p>
  
  <pre><code>HAXM silent installation only supports macOS from 10.8 to 10.12 !
  </code></pre>
  
  <p>I don't know if it is related with this.</p>
  
  <p>After that, I tried to install virtualBox to install genymotion, but I found when I clicks the virturalBox.dmg, the installer crashed.</p>
  
  <p>Could you help me? thanks.</p>