More trouble connecting Rails to Oracle

Hi,

I have an application under development that I have been working on with
a PC. I have just checked out the code on a Mac, and I cannot get my
server to start. I am using Rails 2.0.2. Below is the error:

wireless:events me$ ruby script/server
=> Booting Mongrel (use 'script/server webrick' to force WEBrick)
=> Rails application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment...
Exiting
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/yaml.rb:133:in
`load': syntax error on line 1, col 9: ` adapter: oracle'
(ArgumentError)
  from
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/yaml.rb:133:in
`load'
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/initializer.rb:506:in
`database_configuration'
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/initializer.rb:233:in
`initialize_database'
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/initializer.rb:94:in
`process'
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/initializer.rb:49:in
`send'
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/initializer.rb:49:in
`run'
  from /htdocs/events/config/environment.rb:13
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
   ... 25 levels...
  from /Library/Ruby/Gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:27:in `require'
  from script/server:3

I have the activerecord-oracle-adapter (1.0.0.9250) installed, and below
is the pertinent code from my database.yml file (with the appropriate
db, username and password per my working PC code):

development:
  adapter: oracle
  database: mydatabase
  username: myusername
  password: mypassword

Any ideas what the problem could be?

http://www.carakan.com/2008/01/14/conectarse-de-rails-202-a-oracle/

este me sirvio