大家好，谁能帮助我解决问题
“ ArgumentError：无法解释为DNS名称：nil”
在Rails 4中进行水豚硒整合测试时出现错误 这里我使用的是jruby-1.7.9，JRuby中的ruby版本是2.0.0p195 当时我曾经使用过Ruby版本1.9.7 '无法连接到Chrome驱动程序错误' 在不使用JRuby的纯红宝石中，其集成测试正在运行。但是我的应用程序在JRuby中。我正在使用ubuntu平台。 所以任何人对此都有任何解决方案。我该怎么办才能解决这个问题？
这里我要添加异常回溯
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预先感谢
答案 0 :(得分：0)
从堆栈跟踪中您可以看到它在https://github.com/teamcapybara/capybara/blob/2.9.1/lib/capybara/server.rb#L81内出错-Capybara正在等待要测试的应用程序启动。
这可能意味着您未正确设置Capybara.server_host或Capybara.server_port。如果没有运行的实际代码来生成stacktrace，就很难说。
您可能还想更新到最新的Capybara 2.x版本-2.9.1确实很旧。