/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require’: no such file to load — capistrano/ext/multistage (LoadError)

So to fix this l did the following

sudo gem uninstall capistrano
sudo rm -rf /usr/bin/cap
sudo gem install capistrano-ext
sudo gem install capistrano

Needed to do “sudo rm -rf /usr/bin/cap” as doing just the uninstall of capistrano didn’t remove all the files l needed it to.

# Remove unnecessary Rails files
run 'rm README'
run 'rm public/index.html'
run 'rm public/favicon.ico'
run 'rm public/images/rails.png'
run 'rm -f public/javascripts/*'

# Download JQuery
run "curl -s -L http://jqueryjs.googlecode.com/files/jquery-1.3.1.min.js > public/javascripts/jquery.js"
run "curl -s -L http://jqueryjs.googlecode.com/svn/trunk/plugins/form/jquery.form.js > public/javascripts/jquery.form.js"

#Configure required gems
gem "haml", :version => "2.0.4"
gem 'thoughtbot-shoulda', :lib => 'shoulda', :source => 'http://gems.github.com'
gem "thoughtbot-factory_girl", :lib => "factory_girl", :source => "http://gems.github.com"

#Create Sass directory
run 'mkdir public/stylesheets/sass'

#Capify and create production environment.rb
run 'mkdir config/deploy'
run 'touch config/deploy/production.rb'

#Add UAT environment and settings
file 'config/environments/uat.rb', <<-CODE
# Settings specified here will take precedence over those in config/environment.rb

# Code is not reloaded between requests. Server needs to be restarted.
config.cache_classes = true

# Log error messages when you accidentally call methods on nil.
config.whiny_nils = true

# Show full error reports and disable caching
config.action_controller.consider_all_requests_local = false
config.action_controller.perform_caching             = true
config.action_view.cache_template_loading            = true

# Don't care if the mailer can't send
config.action_mailer.raise_delivery_errors = false
CODE

#Create gitignore file and setup base ignores
run "touch tmp/.gitignore log/.gitignore vendor/.gitignore"
file '.gitignore', <<-FILE
.DS_Store
log/*.log
tmp/**/*
db/*.sqlite3
public/stylesheets/*.css
FILE

# Set up git repository
git :init
git :add => '.'
git :commit => "-a -m 'Initial commit'"

# Success!
puts "SUCCESS!"