ruby on rails - error in your Gemfile, and Bundler cannot continue

Question

I just setup my mac for development and used this exact gemfile previously and it worked fine. I am not sure what I am doing wrong.

Victorias-MacBook-Pro:sample_app Victoria$  bundle --without production
/Users/Victoria/Sites/sample_app/Gemfile:38:in `evaluate': compile error
/Users/Victoria/Sites/sample_app/Gemfile:28: syntax error, unexpected ':', expecting kEND
  gem 'cucumber-rails', '1.2.1', require: false
                                         ^ (SyntaxError)
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/definition.rb:18:in `build'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler.rb:135:in `definition'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/cli.rb:220:in `install'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/vendor/thor/task.rb:22:in `send'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/vendor/thor/task.rb:22:in `run'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/vendor/thor.rb:263:in `dispatch'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/lib/bundler/vendor/thor/base.rb:386:in `start'
       /Library/Ruby/Gems/1.8/gems/bundler-1.1.3/bin/bundle:13
       /usr/bin/bundle:19:in `load'
       /usr/bin/bundle:19
There was an error in your Gemfile, and Bundler cannot continue.

This is the gemfile

source 'https://rubygems.org'

gem 'rails', '3.2.3'
gem 'jquery-rails', '2.0.0'
gem 'bootstrap-sass', '2.0.0'
gem 'bcrypt-ruby', '3.0.1'
gem 'faker', '1.0.1'
gem 'will_paginate', '3.0.3'
gem 'bootstrap-will_paginate', '0.0.5'

group :development, :test do
  gem 'mysql2'
  gem 'rspec-rails', '2.9.0'
  gem 'guard-rspec', '0.5.5'
end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '3.2.4'
  gem 'coffee-rails', '3.2.2'
  gem 'uglifier', '1.2.3'
end

group :test do
  gem 'capybara', '1.1.2'
  gem 'factory_girl_rails', '1.4.0'
  gem 'cucumber-rails', '1.2.1', require: false
  gem 'database_cleaner', '0.7.0'
  gem 'guard-spork', '0.3.2'  
  gem 'spork', '0.9.0'
  # gem 'rb-fsevent', '0.4.3.1', require: false
  # gem 'growl', '1.0.3'
end

group :production do
  gem 'pg', '0.12.2'
end

Answer 1

You're running Ruby 1.8 and the syntax attribute: requires ruby 1.9. You will need to change

gem 'cucumber-rails', '1.2.1', require: false

to

gem 'cucumber-rails', '1.2.1', :require => false

Or install Ruby 1.9 (maybe using RVM or rbenv) and run bundle install again. This would be a much bettter option if it's a new project.