Error: function response: Handler 'handle' missing on module '_apex_index'

I am sure this is a noob problem (sorry if it is), code in https://github.com/dblock/elderfield. The code works locally just fine, including if I download it from Lambda and run locally, but once on Lambda I get this:

$ apex invoke artsy
   ⨯ Error: function response: Handler 'handle' missing on module '_apex_index'

It’s something in my alexa-app, because if stub that code with an apex hello world example that works. Can’t find logs or anything else that helps 😦

Halp!

[expertcoder]

I was just in the AWS console a moment ago. I created a new lambda function via the console. In the function configuration tab, the handler was set to index.handle (NO r) by default. However the boilerplate code provided for the lambda function had exports.handler (WITH r). This was a brief source of confusion for me

[dblock]

If something can be better documented, please PR!