'Canot find an Android SDK' popup message does not fully load

It's my understanding that after you install processing-android, there's a pop-up that looks like this: .
I don't get that. Everything in the pane is white with no text. It looks like this:

I am running Ubuntu 17.04 with i3-gaps. I'm using processing 3.3.6 with android-mode 4.0.

Any help you could give would be fantastic. Thanks

This post is a port of a post on the processing forums that you can find here.

I've figured out the problem. I had two different versions of processing installed. After I removed the older version, processing-android loaded fine.