[scaffolding-node] Error messaging

[eeyun]

@mgamini commented on Wed Dec 06 2017

ERROR: A default proccess bin called 'web' could not be detected from a Procfile or package.json.

Seems the error here is that the package.json file is lacking a start script, but that's not apparent from the error messaging. Probably should be more clear.

[andy-dufour]

Just hit this as well. Can confirm adding a start script (simply node app.js) to packages.json fixed it. If I get some time in the next couple weeks may look at attempting a fix.

If no start script is defined should we not attempt node $main from packages.json?