I\'m using rails 4.1.5 with postgresql 9.1 under Debian 7, and I\'m not able to create a database in my development environment. When I run
bin/rake db:create >
I see two issues, as is04 pointed out you probably need at least a username value in your database.yml.
username
You also need to create the postgres role:
su - postgres create role direct-dev with createdb login password 'password1'