Android Studio - incompatibility between HAXM hypervisor and VirtualBox 4.3.30+

I ran into the following error when launching the simulator in Android Studio on my Macbook Pro today:

emulator: ERROR: Unfortunately, there's an incompatibility between HAXM hypervisor and VirtualBox 4.3.30+ which doesn't allow multiple hypervisors to co-exist. It is being actively worked on; you can find out more about the issue at http://b.android.com/197915 (Android) and https://www.virtualbox.org/ticket/14294 (VirtualBox)

For me the fix was a simple one. I run Docker Beta on the same box. Apparently the hypervisor doesn't like this. So, in order to run the simulator, all I had to do was exit Docker completely. Not ideal, but a quick fix...

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