ERROR: Procfile does not exist, and problems starting web processes

So, I'm currently following this tutorial: https://devcenter.heroku.com/articles/nodejs to start a simple Node.js app. I've got to the part where foreman is used to run the app locally (under Declaring process types with Procfile), and I'm getting an error telling me that the Procfile does not exist. My Procfile is in the same directory as my code, etc. All of the steps up till now have been fine. I skipped past this part in the tutorial to try and run the application on Heroku, but this line heroku ps:scale web=1 under Visit your application tells me that there is "No such type as web"... I'm using Windows to develop my app. Any help would be much appreciated. :-)

EDIT: web: node web.js is the contents of the Procfile, and I'm following the tutorial so I assume it's being committed... could you check the tutorial please and tell me if it is?

I had also received the Procfile does not exist error. The issue with mine was that I had left the '.txt' extension on the file. Once I removed the file extension and ran the foreman start it worked perfectly, hope this help =)