Dynos field is blank after pushing Django app to Heroku
Could it be that you forgot to heroku ps:scale web=1 ?
If not, could your Procfile be missing? Your Procfile should be name Procfile (no extension, capital P), and be placed in your project's root. You can check that by heroku run bash and then change in your app's directory and cat Profile.
Finally, if that's already the case then could your app have failed to start and gave up? Are there any other errors in the log?
Programming newb, Trying to use Heroku for the first time for a Django app.  After I push it to Heroku, the Dynos field is blank.  I expected to see my procfile:  web: python manage.py runserver 0.0.0.0:$PORT --noreload  
Of course, when I try to open the application on Heroku, I get:  An error occurred in the application and your page could not be served. Please try again in a few moments.
If you are the application owner, check your logs for details
Could this be because I don't have an extension on my procfile?  
My Procfile should just be a file I created in my text editor, right?  
Here is the log:

2014-01-06T07:34:17.321925+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=
2014-01-06T07:34:17.778360+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/favicon.ico
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=
2014-01-06T07:35:01.608749+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=
2014-01-06T07:35:01.868486+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/favicon.ico
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=
2014-01-06T07:46:57.862560+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=
2014-01-06T07:46:58.114270+00:00 heroku[router]: at=error code=H14
  desc="No web processes running" method=GET path=/favicon.ico
  host=aqueous-dawn-4712.herokuapp.com fwd="98.232.45.58" dyno= connect=
  service= status=503 bytes=