Error when run migrations on Heroku, PostgreSQL with Rails 5

Question

I deploy Rails 5 with PostgreSQL to free app in Heroku. This is my configuration from database.yml:

production:
  adapter: postgresql
  username         


        

Answer 1

It seems like database is not provided for your app, you need to add one:

heroku addons:create heroku-postgresql

You can verify the database was added to your application by running:

heroku config --app your_app_name