Sounds like you probably didn't run npm install before running serverless deploy. This is required in order to deploy the necessary node_modules that contain the dependencies needed for the Lambda to run. I have updated this blog post to reflect that.
Thanks Kyle. I retried with the npm install and still didn't have any luck. After grubbing around google, I decided to give package.json a look and there were some babel dependencies that crept in. I have no idea how since I git cloned your repo but after doing a diff on the files and replacing with the original code, I have eliminated that error.
Now I am getting a undefined type error when it reads the 'text' column from the spreadsheet. Good crash course on node.js troubleshooting. ;-)
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