ubuntu - rails g scaffold! uninitialized constant in development environment -


i got ror development environment setup on ubuntu 10.04, using postgresql database. doing test generate scaffold when got:

<module:appname>: uninitialized constant appname::rails::application (nameerror)  /home/main/rails_app/appname/config/application.rb:12:in '<top (required)>' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:24:in 'require' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:24:in '<top (required)>' script/rails:6:in 'require' script/rails:6:in '<main>'

and gem list follows

actionmailer (3.2.13) actionpack (3.2.13) activemodel (3.2.13) activerecord (3.2.13) activeresource (3.2.13) activesupport (3.2.13) arel (3.0.2) bigdecimal (1.1.0) builder (3.0.4) bundler (1.3.5) coffee-rails (3.2.2) coffee-script (2.2.0) coffee-script-source (1.6.2) erubis (2.7.0) execjs (1.4.0) hike (1.2.2) i18n (0.6.1) io-console (0.3) journey (1.0.4) jquery-rails (2.2.1) json (1.8.0, 1.5.4) mail (2.5.3) mime-types (1.23) minitest (2.5.1) multi_json (1.7.3) pg (0.15.1) polyglot (0.3.3) rack (1.4.5) rack-cache (1.2) rack-ssl (1.3.3) rack-test (0.6.2) rails (3.2.13) railties (3.2.13) rake (10.0.4) rdoc (3.12.2, 3.9.4) sass (3.2.9) sass-rails (3.2.6) sprockets (2.2.2) thor (0.18.1) tilt (1.4.1) treetop (1.4.12) tzinfo (0.3.37) uglifier (2.1.0)

i remember getting similar error way had edit rakefile require rake/dsl_definition didn't work time , quite stomped

i searched through google no luck , wondering if can point me in correct direction.

calling rake gives similar error

edit:

i tried new project newly created db user , got this

    connection_adapters/postgresql_adapter.rb:1216:in `initialize': fatal:  ident authentication failed user "blog" (pg::error) /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `new' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1216:in `connect' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:324:in `initialize' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `new' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `postgresql_connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout' /root/.rbenv/versions/1.9.3-p125/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:railtie>' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing' /home/daniel/rails_app/blog/config/environment.rb:5:in `<top (required)>' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/application.rb:103:in `require' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/application.rb:103:in `require_environment!' /root/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:25:in `<top (required)>' script/rails:6:in `require' script/rails:6:in `<main>'


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