我正在关注迈克尔·哈特尔的ruby on rails教程来测试示例应用程序(3.2.1测试驱动开发),但输入后我遇到了以下错误 bundle exec rspec spec/requests/static_pages_spec.rb
/home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in `require': cannot load such file -- zip/zip (LoadError)
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in `<top (required)>'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in `require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in `<top (required)>'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in `require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in `<top (required)>'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in `require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in `<top (required)>'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /home/rahul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /home/rahul/Downloads/rails_projects/sample_app/config/application.rb:12:in `<top (required)>'
from /home/rahul/Downloads/rails_projects/sample_app/config/environment.rb:2:in `require'
from /home/rahul/Downloads/rails_projects/sample_app/config/environment.rb:2:in `<top (required)>'
from …