I have deployed a Node js application to Heroku. Before I have done that, I have double checked if my application is working correctly on my local machine. I have web: npm start in my procfile. I have all the environment variable inserted correctly!. I have also an application logger log file were I can check for any error. In this case I have an empty file on heroku. I also made sure that my netwerk access in mongoDB is set to "Allow Anyone" which is port 0.0.0.0./0. I have increase the boot-timeout to 120s but got the same error.

I really don't know what else I can do, I read an article about Gems but that is for Ruby programmers, my application is made in java script.

Any help will be appreciated,

Kind regards.