capybara firefox 48给出错误

Question

将firefox更新为版本48但它给出以下错误。任何帮助如何解决它：

  

Selenium :: WebDriver :: Error :: WebDriverError：无法在60秒内获得稳定的firefox连接（127.0.0.1:7055）       来自/Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/firefox/launcher.rb:90:in connect_until_stable' from /Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/firefox/launcher.rb:55:in阻止发布＆＃39;       来自/Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/common/socket_lock.rb:43:in locked' from /Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/firefox/launcher.rb:51:in发布＆＃39;       来自/Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/firefox/bridge.rb:43:in initialize' from /Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/common/driver.rb:53:in new＆＃39;       来自/Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver/common/driver.rb:53:in for' from /Library/Ruby/Gems/2.0.0/gems/selenium-webdriver-2.52.0/lib/selenium/webdriver.rb:86:in for＆＃39;       来自/ Library /Ruby / Gems/2.0.0/gems/capybara-2.6.2/lib/capybara/selenium/driver.rb:13:in browser' from /Library/Ruby/Gems/2.0.0/gems/capybara-2.6.2/lib/capybara/selenium/driver.rb:45:in访问＆＃39;       来自/Library/Ruby/Gems/2.0.0/gems/capybara-2.6.2/lib/capybara/session.rb:232:in visit' from /Library/Ruby/Gems/2.0.0/gems/capybara-2.6.2/lib/capybara/dsl.rb:51:in块（2级）＆＃39;       来自/Users/mesutgunes/scripts/capybara.rb:53       来自/ usr / bin / irb：12：在`＆＃39;

Answer 1

如果没有selenium-webdriver v3和geckodriver，Firefox v48将无法使用（在Capybara中）。有一个测试版的selenium-webdriver v3，但它目前缺少一些关键功能（例如，不能读取表单元素的当前值），并且还没有真正准备好进行实际测试。现在降级到47。