configure-aspen.py potentially missing

I'm getting this notice when running make run: Default configuration script not found: /Users/jeremiah/Applications/mongs/configure-aspen.py.

[chadwhitacre]

@jeremiahlee I'm not able to reproduce this. That's also not a familiar error to me, I wouldn't expect Aspen to fail if there's no configure-aspen.py. Can you give me a better repro recipe?