Symfony on Heroku: 403 Forbidden You don't have permission to access / on this server

It is not possible. more than 3 hours to find a solution. A solution that could not be found in all the code I posted here.

A really, simple, stupid, small solution: the procfile name. Are you noticing? I'm writing it all in lowercase letters.

The solution? Procfile, with the first letter in uppercase.

It was an hell, but finally I have my app up and running! :D

The easiest way to do this is to type that line without quotation mark.

For Example

web: vendor/bin/heroku-php-apache2 public/