Heroku process.env.port is undefined

Question

I am trying to run a node.js app on heroku. I got it working local, but when i deploy it on heroku i get the following error:

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

This is the port i try to listen to:

const PORT = process.env.port || 3000;

When i logged what the process.env.port was it said process.env.port was undefined.

Is there anything i need to do to automatically set the port?

Edit (FIX): So i found out where the problem was. The javascript was being minified, but the process.env.port was minified to something that didn't work. Thanks for the help.

Answer 1

for any one get to that post. first check if you are writing process.env.PORT correctly. I was writing .Port and it took 4 hours of my life to figure out the error