I read and apply \"Getting started with Django on Heroku\" tutorial but ran into problem while syncing db:
raise ImproperlyConfigured(\"settings.DATABASES is
Ensure that you have the database add-on installed and setup properly. See https://devcenter.heroku.com/articles/database#no-dev-database-or-no-database-url
I ran the following to fix the issue:
heroku addons:add heroku-postgresql heroku pg:promote HEROKU_POSTGRESQL_CYAN