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Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch heroku

Heroku dynamically assigns your app a port, so you can't set the port to a fixed number. Heroku adds the port to the env, so you can pull it from there. Switch your listen to this:

.listen(process.env.PORT || 5000)
That way it'll still listen to port 5000 when you test locally, but it will also work on Heroku.

Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch

In package.json, make sure you add -p $PORT at the start script.

"scripts": {
    "start": "next start -p $PORT"
}

Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch

In package.json,, make sur you add -p $PORT at the start script.

"scripts": {
    "start": "next start -p $PORT"
}

Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch

heroku port