尝试自动化时，Android 驱动程序抛出错误

Question

我正在尝试为移动浏览器实现自动化，使用 selenium(Android 驱动程序)和 ruby​​ 脚本，这是相同的示例脚本

require 'selenium-webdriver'
require "selenium/client"
caps = Selenium::WebDriver::Remote::Capabilities.android  
client = Selenium::WebDriver::Remote::Http::Default.new  
client.timeout = 480  
driver = Selenium::WebDriver.for(  
  :remote,  
  :url => "http://localhost:8080/wd/hub/",  
  :http_client => client,  
  :desired_capabilities => caps)  
driver.navigate.to "http://www.google.com"  
element = driver.find_element(:name, 'q')  
element.send_keys "Example google"
element.submit  
puts driver.title  
driver.quit

它执行到sendkeys的步骤，但是在那之后，它抛出错误，捕获的错误是

EOFError: end of file reached
        from C:/Ruby200/lib/ruby/2.0.0/net/protocol.rb:153:in `read_nonblock'
        from C:/Ruby200/lib/ruby/2.0.0/net/protocol.rb:153:in `rbuf_fill'
        from C:/Ruby200/lib/ruby/2.0.0/net/protocol.rb:134:in `readuntil'
        from C:/Ruby200/lib/ruby/2.0.0/net/protocol.rb:144:in `readline'
        from C:/Ruby200/lib/ruby/2.0.0/net/http/response.rb:39:in `read_status_l
ine'
        from C:/Ruby200/lib/ruby/2.0.0/net/http/response.rb:28:in `read_new'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1406:in `block in transport_r
equest'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1403:in `catch'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1403:in `transport_request'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1376:in `request'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1369:in `block in request'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:852:in `start'
        from C:/Ruby200/lib/ruby/2.0.0/net/http.rb:1367:in `request'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/http/default.rb:83:in `response_for'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/http/default.rb:39:in `request'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/http/common.rb:40:in `call'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/bridge.rb:634:in `raw_execute'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/bridge.rb:612:in `execute'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/remote/bridge.rb:428:in `submitElement'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.35.1/lib/s
elenium/webdriver/common/element.rb:179:in `submit'
        from (irb):14
        from C:/Ruby200/bin/irb:12:in `<main>'irb(main):015:0> puts driver.title

我还尝试了 IRB 中的所有命令，以确认它不是由于超时异常。请建议，到底是什么问题以及如何从移动浏览器自动化中的这种场景中克服。

提前致谢:)

Answer 1

我在针对真实设备和模拟器(尽管在不同点)进行自动化时遇到 EOF 错误。

解决方案是卸载新的 android-server-2.32.0.apk 并安装旧版本的 android-server-2.21.0.apk。