title: Deploying Flask app on Heroku - web1:crashed
body: <p>I am trying to deploy a Flask app to Heroku , but I recieve this error:</p>
  
  <pre><code>(venv)rgb:~/flaskapp/app$ heroku ps
  === web (1X): `gunicorn app:app`
  web.1: crashed 2014/07/09 21:39:45 (~ 10s ago)
  </code></pre>
  
  <p>It works locally with 'foreman start' but pushing it on Heroku the web crashes:</p>
  
  <pre><code>(venv)rgb@rgb-K45VD:~/flaskapp/app$ foreman start 
  21:41:01 web.1  | started with pid 3269
  </code></pre>
  
  <p>This is the following heroku logs:
  (venv)rgb@rgb-K45VD:~/flaskapp/app$ heroku logs</p>
  
  <pre><code>2014-07-09T18:38:42.934053+00:00 heroku[api]: Enable Logplex by user
  2014-07-09T18:38:42.934053+00:00 heroku[api]: Release v2 created by user
  2014-07-09T18:38:57+00:00 heroku[slug-compiler]: Slug compilation started
  2014-07-09T18:39:31+00:00 heroku[slug-compiler]: Slug compilation finished
  2014-07-09T18:39:30.976889+00:00 heroku[api]: Scale to web=1 by user
  2014-07-09T18:39:31.123082+00:00 heroku[api]: Deploy ea4c116 by user
  2014-07-09T18:39:31.123204+00:00 heroku[api]: Release v3 created by user
  2014-07-09T18:39:35.095809+00:00 heroku[web.1]: Starting process with command `gunicorn app:app`
  2014-07-09T18:39:38.231874+00:00 heroku[web.1]: State changed from starting to crashed
  2014-07-09T18:39:38.232507+00:00 heroku[web.1]: State changed from crashed to starting
  2014-07-09T18:39:38.229063+00:00 heroku[web.1]: Process exited with status 3
  2014-07-09T18:39:42.092210+00:00 heroku[web.1]: Starting process with command `gunicorn app:app`
  2014-07-09T18:39:44.747854+00:00 heroku[web.1]: State changed from starting to up
  2014-07-09T18:39:46.210641+00:00 heroku[web.1]: State changed from up to crashed
  2014-07-09T18:39:46.180463+00:00 heroku[web.1]: Process exited with status 3
  2014-07-09T18:39:50.025372+00:00 heroku[api]: Scale to web=1 by user
  2014-07-09T18:41:30.849878+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=flazkeh.herokuapp.com request_id=89f286f6-44ec-4751-91ec-7411857fbd80 fwd="80.223.191.140" dyno= connect= service= status=503 bytes=
  2014-07-09T18:41:31.434515+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=flazkeh.herokuapp.com request_id=63c33396-87d9-4b33-89a5-3f2288b707cd fwd="80.223.191.140" dyno= connect= service= status=503 bytes=
  </code></pre>
  
  <p>This seems to be the error:</p>
  
  <pre><code>2014-07-09T18:41:30.849878+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=flazkeh.herokuapp.com request_id=89f286f6-44ec-4751-91ec-7411857fbd80 fwd="80.223.191.140" dyno= connect= service= status=503 bytes=
  2014-07-09T18:41:31.434515+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=flazkeh.herokuapp.com request_id=63c33396-87d9-4b33-89a5-3f2288b707cd fwd="80.223.191.140" dyno= connect= service= status=503 bytes=
  </code></pre>
  
  <p>Any help would be very much appreciated!</p>