ubuntu - Ruby On Rails Mysql Access Denied -

im trying excute following command on new rails project on ubuntu server.

rails g scaffold user email:string username:string 

but im receiving following error:

"/usr/local/rvm/gems/ruby-1.9.3-p392/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `connect': access denied user 'root'@'localhost' (using password: yes) (mysql2::error)     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `initialize'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `new'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `mysql2_connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout'     /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection'     /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:railtie>'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'     /home/rails/membershipservices/config/environment.rb:6:in `<top (required)>'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:103:in `require'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:103:in `require_environment!'     /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/commands.rb:25:in `<top (required)>'     script/rails:6:in `require'     script/rails:6:in `<main>' 

i have tried accessing mysql thru server credentials provided in database.yml , can login fine. reason can't via ruby on rails command. database.yml is:

  # mysql.  versions 4.1 , 5.0 recommended. #  # install mysql driver #   gem install mysql2 # # ensure mysql gem defined in gemfile #   gem 'mysql2' # # , sure use new-style password hashing: #   http://dev.mysql.com/doc/refman/5.0/en/old-client.html development:   adapter: mysql2   encoding: utf8   reconnect: false   database: membershipservices_development   pool: 5   username: root   password: ******   socket: /var/run/mysqld/mysqld.sock  # warning: database defined "test" erased , # re-generated development database when run "rake". # not set db same development or production. test:   adapter: mysql2   encoding: utf8   reconnect: false   database: membershipservices_test   pool: 5   username: root   password: ******   socket: /var/run/mysqld/mysqld.sock  production:   adapter: mysql2   encoding: utf8   reconnect: false   database: membershipservices_production   pool: 5   username: root   password: ******   host: localhost   socket: /var/run/mysqld/mysqld.sock 

again verified username , password provided correct logging mysql via terminal on server. in advance!

i doing more research on website , able try different things. thing helped me renaming username root1 root2 , root3 verify environment using. after doing verified development being used. added host: localhost development connection information , did trick.