title: App deployed on heroku but not opening.Have used python
body: <p>this is the error i am getting.</p>
  <p>this is the 3 time i am getting same error while deployment.
  I also checked the logs. The log file contents are:</p>
  <p>please help</p>
  <pre><code>2021-03-23T19:58:37.705318+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/%20deployed%20to%20Heroku&quot; host=co2-emission-pre-diction.herokuapp.com request_id=c3e2c6e3-0762-46f5-b2fd-99149f594594 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:58:38.517056+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=dea037a8-d4ee-429f-a31a-595d79c430cb fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:58:45.302966+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=co2-emission-pre-diction.herokuapp.com request_id=f4584f03-44f1-4117-aabb-6d7e6d888a2e fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:58:46.898144+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=fc38ae35-5afb-4a41-a8fb-a96574232c7d fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:59:18.687973+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=co2-emission-pre-diction.herokuapp.com request_id=9f7e3d6f-7356-4994-b8d4-0f9b1656b679 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:59:19.522940+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=926260ee-1f96-4ed6-90f0-e62bc10e7f13 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:59:55.796315+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=co2-emission-pre-diction.herokuapp.com request_id=9e4a1ad9-c826-430a-837d-6c3bb1623629 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T19:59:56.428470+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=36e2296a-8364-42a3-b647-65136ea59972 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T20:01:35.260787+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=co2-emission-pre-diction.herokuapp.com request_id=e0070481-0492-4b10-975b-27ddbb086646 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T20:01:36.411104+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=0a59ff26-3a8d-45d4-a3b6-030f8126fc8b fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T20:04:08.260298+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=co2-emission-pre-diction.herokuapp.com request_id=e9e66103-fd75-4f88-9a8b-728379b146a4 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  2021-03-23T20:04:09.542606+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=co2-emission-pre-diction.herokuapp.com request_id=88e2ee70-4247-4afa-9d9f-ebce57af9533 fwd=&quot;157.45.119.41&quot; dyno= connect= service= status=503 bytes= protocol=https
  </code></pre>