In Rails, Couldn't create database for {"adapter"=>"postgresql",

I'm trying to run `rake db:create` or `rake db:setup` but I get the following error. It's strange because `rake db:create` it's working fine from others folders with other Rails projects. ``` user:project user$ rake db:create could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"? /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:991:in `initialize' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:991:in `new' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:991:in `connect' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:260:in `initialize' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:27:in `new' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:27:in `postgresql_connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:304:in `new_connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:in `checkout_new_connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in `block (2 levels) in checkout' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in `loop' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in `block in checkout' /Users/user/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in `checkout' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:in `connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in `retrieve_connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:107:in `retrieve_connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:89:in `connection' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/railties/databases.rake:110:in `rescue in create_database' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/railties/databases.rake:54:in `create_database' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/activerecord- 3.1.0/lib/active_record/railties/databases.rake:42:in `block (2 levels) in <top (required)>' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `block in execute' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain' /Users/user/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run' /Users/user/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>' /Users/user/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in `load' /Users/user/.rvm/gems/ruby-1.9.2-p290/bin/rake:19:in `<main>' Couldn't create database for {"adapter"=>"postgresql", "database"=>"project_test", "username"=>nil, "password"=>nil, "min_messages"=>"warning"} ``` This is my `database.yml` ``` development: adapter: postgresql database: project_development username: password: min_messages: warning test: adapter: postgresql database: project_test username: password: min_messages: warning production: adapter: postgresql database: project_production username: password: min_messages: warning ``` Posgree is insatelled on `/usr/local/var/postgres`. Shouldn't rake try to look it in the same folder instead of `/var/pgsql_socket/` ? (I don't have a /usr/local/var/pgsql_socket anyways)