Trouble getting active_support to connect to db

[knownasilya]

Context

Trying to start carto, and get this error:

editor_1    | /usr/local/bundle/gems/activesupport-4.2.11.3/lib/active_support/dependencies.rb:274:in `require': Could not load 'active_record/connection_adapters/postgres_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError)

My database config input looks like so:

development:
  adapter: postgres
  encoding: unicode
  host: postgres # name of service in docker compose setup
  port: 5432
  database: carto_db_production
  username: postgres
  password: test
  conn_validator_timeout: 900

Steps to Reproduce

Please break down here below all the needed steps to reproduce the issue

1. Follow guide to start carto (latest tag or master)
2. RAILS_ENV=development bundle exec rails s -p 3000
3. See error

Current Result

editor_1    | /usr/local/bundle/gems/activesupport-4.2.11.3/lib/active_support/dependencies.rb:274:in `require': Could not load 'active_record/connection_adapters/postgres_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError)

Expected result

Expect the editor to start.

Browser and version

What internet browser (Chrome, Firefox, etc) and version was you using and version
Chrome, but doesn't apply. Running carto in docker using Ubuntu 16.
Tried this in latest tagged release and master branch, same results.

Additional info

Please add any information of interest here below

[knownasilya]

Looks like the adapter name was postgres instead of postgresql 🤦🏼