Problems Building code in Chapter 1

[RB]

I download the code from GitHub and I am hitting the same problems.
Here is the snippet and any pointers will allow me to venture further
with Ruby.

~/dev/pauldix-service-oriented-design-with-ruby-0ca0b10/chapter_01
>rspec spec/service_spec.rb
DEPRECATION WARNING: require "activerecord" is deprecated and will be
removed in Rails 3. Use require "active_record" instead.. (called
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/activerecord-2.3.5/lib/activerecord.rb:2)
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in
`gem_original_require': no such file to load -- spec
(MissingSourceFile)
from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in
`require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/
dependencies.rb:156:in `require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/
dependencies.rb:521:in `new_constants_in'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/
dependencies.rb:156:in `require'
from /Users/rbhatia/dev/pauldix-service-oriented-design-with-
ruby-0ca0b10/chapter_01/spec/service_spec.rb:2
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
configuration.rb:327:in `load'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
configuration.rb:327:in `load_spec_files'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
configuration.rb:327:in `map'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
configuration.rb:327:in `load_spec_files'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
command_line.rb:18:in `run'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
runner.rb:55:in `run_in_process'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
runner.rb:46:in `run'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.2.1/lib/rspec/core/
runner.rb:10:in `autorun'
from /usr/bin/rspec:19

[RB]

> spec
-bash: spec: command not found

RSpec has been installed

Environment: MAC OS

RubyGems Environment:
- RUBYGEMS VERSION: 1.3.7
- RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) [universal-
darwin10.0]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/
Versions/1.8/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- universal-darwin-10
- GEM PATHS:
- /Library/Ruby/Gems/1.8
- /Users/rbhatia/.gem/ruby/1.8
- /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- :sources => ["http://rubygems.org/", "http://gemcutter.org",
"http://gemcutter.org"]
- REMOTE SOURCES:
- http://rubygems.org/
- http://gemcutter.org
- http://gemcutter.org