Export customized text from database into YML

안녕하세요. 실행하는 단계를 설명해 주실 수 있을까요?

./launcher enter app
bin/rake export:translation_overrides

반환값:

rake aborted!
ActiveRecord::NoDatabaseError: We could not find your database: discourse. Which can be found in the database configuration file located at config/database.yml