Watir Webdriver(0.9.1) No Longer Opens an Instance of Firefox

Question

While using Watir Webdriver v0.9.1 for rails (along with Selenium Webdriver 2.53.1), Firefox was opening when

  browser = Watir::Browser.new :firefox

was called. Now however, it fails on that line with

unable to bind to locking port 7054 within 45 seconds
    @ /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/common/socket_lock.rb:59:in `lock'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/common/socket_lock.rb:40:in `locked'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/firefox/launcher.rb:51:in `launch'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/firefox/bridge.rb:43:in `initialize'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/common/driver.rb:53:in `new'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver/common/driver.rb:53:in `for'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/selenium-webdriver-2.53.1/lib/selenium/webdriver.rb:84:in `for'
      /Users/andmcadams/.rvm/gems/ruby-2.0.0-p648/gems/watir-webdriver-0.9.1/lib/watir-webdriver/browser.rb:46:in `initialize'
      test/integration/like_fanpage_task_test.rb:40:in `new'
      test/integration/like_fanpage_task_test.rb:40:in `block (2 levels) in <class:LikeFanpageTaskTest>'

It seemed to do so randomly, as I did not change the code from its working form and that line is the first line called. I have Firefox 37.0.2, which worked earlier. I have tried restarting my computer, killing processes related to ruby and Firefox and starting them again, and reinstalling Firefox but to no avail.

Answer 1

Mozilla has introduced a new webdriver, and due to a bug in firefox 47, only the new webdriver works for firefox. However I would suggest permanently switching to the new webdriver either way as support will be fully dropped as of firefox 48.

You can use the new webdriver in ruby using the following:

driver = Selenium::WebDriver.for :firefox, marionette: true

But I don't know if that would make you able to use it in watir as well.

As far as I can tell marionette (the new driver) support is not completed yet in watir (I could be wrong), I see this pull request is dealing with it but it is not completed or merged.

It looks to me as if you can do:

browser = Watir::Browser.new :marionette

When the watir project is finished integrating the new driver.

Answer 2

请使用最新的webdriver selenium-webdriver.2.5.4，它在seleniumhq上尚不可用，但请进行搜索。