title: Heroku not finding procfile - Flask-SocketIO
body: <p>I am trying to deploy a flask-socketio project to the web, but the build isn't noticing the web dyno. I made a file called <code>Procfile</code>, without an extension. Inside procfile it has</p>
  
  <pre><code>web:gunicorn manage:app
  </code></pre>
  
  <p>Should I change manage to manage.py? Why does the build look like</p>
  
  <pre><code>-----&gt; Python app detected
  -----&gt; Installing requirements with pip
  -----&gt; Discovering process types
  -----&gt; Compressing...
         Done: 46.1M
  -----&gt; Launching...
         Released v32
         https://use-chats.herokuapp.com/ deployed to Heroku
  </code></pre>
  
  <p>One time it said it had found a web dyno, but now it isn't. </p>