Method Not Allowed?

Question

Ruby on Rails

I got an assignment at the university to make a site on Ruby on Rails. Usually I like to study more and more deeply, but for me a particular topic is not interesting. I'm going through Ruby on Rails for Beginners (Michael Hartl). I do everything according to the algorithm

class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception

  def hello
    render html: "hello, world!"
  end
end

Rails.application.routes.draw do
  
  resources :users
  root 'application#hello'
end

But I get not "Hello world", but "Method Not Allowed".

Answer 1

Thanks everyone, I've solved the issue.
Just need to run if you are using cloud9 using Share as mentioned in the first chapter.
I originally ran from a link after the command heroku create
. It's not really easy for me to follow this book, because. very annoying learning surface in the first chapters. Thanks to all.