unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055) (Selenium::WebDriver::Error::Web DriverError)

(Selenium::WebDriver::Error::Web DriverError)

unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055) (Selenium::WebDriver::Error::WebDriverError)
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/firefox/launcher.rb:79:in `connect_until_stable'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/firefox/launcher.rb:37:in `block in launch'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/firefox/socket_lock.rb:20:in `locked'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/firefox/launcher.rb:32:in `launch'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/firefox/bridge.rb:20:in `initialize'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/common/driver.rb:31:in `new'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver/common/driver.rb:31:in `for'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdriver.rb:67:in `for'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/capybara-2.0.2/lib/capybara/selenium/driver.rb:13:in `browser'
c:/Users/Q.A3/cucumber_test/rahul_app/features/support/screenshots.rb:3:in `After'


#

77          unless poller.connected?
78            @binary.quit
79            raise Error::WebDriverError, "unable to obtain stable firefox connection in #{STABLE_CONNECTION_TIMEOUT} seconds (#{@host}:#{@port})"
80          end
81        end
82# gem install syntax to get syntax highlighting