title: Heroku app successfully deploying, but receiving application error when loading site
body: <p>My logs don't indicate any errors as far as I can tell, but I'm receiving the following error when loading the site:</p>
  
  <p><code>An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. You can do this from the Heroku CLI with the command
  heroku logs --tail</code></p>
  
  <p>Below you can find the logs. Am I missing something here?</p>
  
  <pre><code>-----&gt; Python app detected
  -----&gt; Uninstalling stale dependencies
         Uninstalling Django-2.1.5:
           Successfully uninstalled Django-2.1.5
         Uninstalling Pillow-5.4.1:
           Successfully uninstalled Pillow-5.4.1
  -----&gt; Installing requirements with pip
         Collecting dj-database-url==0.5.0 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 1))
           Downloading https://files.pythonhosted.org/packages/d4/a6/4b8578c1848690d0c307c7c0596af2077536c9ef2a04d42b00fabaa7e49d/dj_database_url-0.5.0-py2.py3-none-any.whl
         Collecting Django==2.1.5 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 2))
           Downloading https://files.pythonhosted.org/packages/36/50/078a42b4e9bedb94efd3e0278c0eb71650ed9672cdc91bd5542953bec17f/Django-2.1.5-py3-none-any.whl (7.3MB)
         Collecting django-heroku==0.3.1 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 3))
           Downloading https://files.pythonhosted.org/packages/59/af/5475a876c5addd5a3494db47d9f7be93cc14d3a7603542b194572791b6c6/django_heroku-0.3.1-py2.py3-none-any.whl
         Collecting gunicorn==19.9.0 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 4))
           Downloading https://files.pythonhosted.org/packages/8c/da/b8dd8deb741bff556db53902d4706774c8e1e67265f69528c14c003644e6/gunicorn-19.9.0-py2.py3-none-any.whl (112kB)
         Collecting Pillow==5.4.1 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 5))
           Downloading https://files.pythonhosted.org/packages/ae/2a/0a0ab2833e5270664fb5fae590717f867ac6319b124160c09f1d3291de28/Pillow-5.4.1-cp37-cp37m-manylinux1_x86_64.whl (2.0MB)
         Collecting psycopg2==2.8.2 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 6))
           Downloading https://files.pythonhosted.org/packages/23/7e/93c325482c328619870b6cd09370f6dbe1148283daca65115cd63642e60f/psycopg2-2.8.2.tar.gz (368kB)
         Collecting whitenoise==4.1.2 (from -r /tmp/build_99fe21a8dcc00005ce600053adc20260/requirements.txt (line 8))
           Downloading https://files.pythonhosted.org/packages/fd/2a/b51377ab9826f0551da19951257d2434f46329cd6cfdf9592ea9ca5f6034/whitenoise-4.1.2-py2.py3-none-any.whl
         Installing collected packages: dj-database-url, Django, whitenoise, psycopg2, django-heroku, gunicorn, Pillow
           Running setup.py install for psycopg2: started
             Running setup.py install for psycopg2: finished with status 'done'
         Successfully installed Django-2.1.5 Pillow-5.4.1 dj-database-url-0.5.0 django-heroku-0.3.1 gunicorn-19.9.0 psycopg2-2.8.2 whitenoise-4.1.2
  -----&gt; $ python manage.py collectstatic --noinput
         119 static files copied to '/tmp/build_99fe21a8dcc00005ce600053adc20260/staticfiles', 375 post-processed.
  -----&gt; Discovering process types
   ~     Mis-cased procfile detected; ignoring.
   ~     Rename it to Procfile to have it honored.
         Procfile declares types -&gt; (none)
  -----&gt; Compressing...
         Done: 68.2M
  -----&gt; Launching...
         Released v7
         https://andrew-data-incubator-project.herokuapp.com/ deployed to Heroku
  </code></pre>