I’m working on getting my first rails application, but for whatever reason, when I run the command $rails server, my terminal throws back this error:
C:\Sites\blog>rails server => Booting WEBrick => Rails 3.2.13 application starting in development on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server Exiting C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/r ubygems_integration.rb:214:in `block in replace_gem': Please install the mysql2 adapter: `gem install activerecord-mysql2-adapter` (mysql2 is not part of the bu ndle. Add it to Gemfile.) (LoadError) from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:3:in `<top (requir ed)>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/dependencies.rb:251:in `require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/dependencies.rb:251:in `block in require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/dependencies.rb:251:in `require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb :50:in `resolve_hash_connection' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb :41:in `resolve_string_connection' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb :25:in `spec' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb :130:in `establish_connection' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/railtie.rb:82:in `block (2 levels) in <class:Railtie>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport- 3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/base.rb:720:in `<top (required)>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3 .2.13/lib/active_record/railtie.rb:88:in `block in <class:Railtie>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/initializable.rb:30:in `instance_exec' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/initializable.rb:30:in `run' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/initializable.rb:55:in `block in run_initializers' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/initializable.rb:54:in `each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/initializable.rb:54:in `run_initializers' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/application.rb:136:in `initialize!' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/railtie/configurable.rb:30:in `method_missing' from C:/Sites/blog/config/environment.rb:5:in `<top (required)>' from C:/Sites/blog/config.ru:3:in `require' from C:/Sites/blog/config.ru:3:in `block in <main>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/builder.rb:51:in `instance_eval' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/builder.rb:51:in `initialize' from C:/Sites/blog/config.ru:in `new' from C:/Sites/blog/config.ru:in `<main>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/builder.rb:40:in `eval' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/builder.rb:40:in `parse_file' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/server.rb:200:in `app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands/server.rb:46:in `app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/server.rb:304:in `wrapped_app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib /rack/server.rb:254:in `start' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands/server.rb:70:in `start' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:55:in `block in <top (required)>' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:50:in `tap' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:50:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>' How can I solve the problem? My Ruby version: ruby 1.9.3p392 (2013-02-22) [i386-mingw32] Rails version: 3.2.13 gem --version: 1.8.24
