bundle remote error: Repository not found - ruby-on-rails

Question

I want deploy the sample project of rails3 in action.When i run 'bundle install',it tells me that remote error: Repository not found.I am new to git,github and rails3.but i have alreay created a github account and config git and github well.i do not know what happend.i will be very thankful if anything can help!
Here is the console message(ubuntu 12.04LST):
magic#magic-ThinkPad-T430u:~/文档/rails/ticketee-book$ bundle
Fetching gem metadata from http://rubygems.org/.......
Fetching gem metadata from http://rubygems.org/..
Fetching git://github.com/radar/rack-test
fatal: remote error: Repository not found.
Git error: command `git clone 'git://github.com/radar/rack-test'
"/home/magic/.rvm/gems/ruby-1.9.3-p392#rails3.2/cache/bundler/git/rack-test-
8ce034d275474b0b137179c1bd5be3e5ee2e2464"
--bare --no-hardlinks` in directory /home/magic/文档/rails/ticketee-book has failed.
Here is the gemfile:
source 'http://rubygems.org'
gem 'rails', :git => "git://github.com/rails/rails", :branch => "3-1-stable"
# gem 'arel', :git => 'git://github.com/rails/arel.git'
gem 'rack'
gem 'sprockets', :git => "git://github.com/sstephenson/sprockets.git"
gem 'sqlite3'
gem 'sass', '~> 3.1.0.alpha'
gem 'coffee-script'
gem 'dynamic_form'
gem 'devise', :git => "git://github.com/plataformatec/devise.git"
gem 'cancan'
gem 'paperclip', :git => "git://github.com/thoughtbot/paperclip.git"
gem 'searcher'
gem 'kaminari'
gem 'jquery-rails'
gem "oa-oauth", :require => "omniauth/oauth"
gem "delayed_job"
# gem "forem", :git => "git://github.com/radar/forem"
gem "ticketee-forem", :require => "forem", :path => "../forem"
gem 'sinatra'
group :test, :development do
gem 'gmail'
gem 'rspec-rails', '~> 2.6.1.beta1'
end
group :test do
gem 'rack-test', :git => "git://github.com/radar/rack-test"
gem 'cucumber-rails', :git => "git://github.com/cucumber/cucumber-rails"
gem 'capybara'
gem 'database_cleaner'
gem 'factory_girl'
gem 'email_spec'
gem 'launchy'
end
group :production do
gem 'pg'
end

Answer 1

In your Gemfile, in the test group, you have the following line
gem 'rack-test', :git => "git://github.com/radar/rack-test"
It will instruct bundler to clone the repository and use its contents as a gem. As the repository doesn't exist on Github anymore, the bundle fails.
You should edit your Gemfile and either use the new repository location or use the published gem from rubygems.org. In the end, you have to edit your gemfile to use one of the following alternatives:
gem 'rack-test', :git => "https://github.com/brynary/rack-test.git"
# or
gem "rack-test"

Answer 2

No, the problem is that the repository is not there anymore. try by downloading repository on a new address:
git clone git://github.com/brynary/rack-test.git
Now after cloning has done, in terminal do:
cd rack-test
And now you are in very directory you created when you did git clone and then try to run command:
bundle install --path vendor/bundle
And everything should work