Alright, I am trying to run my next.js on local host for development by running npx next dev at the root of the project. Upon doing this, I get logs that a local server was started and then the command fails with this error:

UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:76651) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
error - Failed to load next.config.js, see more info here https://nextjs.org/docs/messages/next-config-error
Error: Not supported

I went to the link mentioned and saw "This could be due to a syntax error or attempting to require/import a module that wasn't available." I cloned a template project so I know I havent made any errors in the config file.

Other SO posts mention this is due to Node JS and Next js being out of sync in versions. I updated Node JS and am now on most up to date v10.15.3.

Given this is the Next template project, What is wrong here? How I can run my project locally for easy testing?