Selenium错误-到远程WebDriver的HTTP请求在60秒后超时 [英] Selenium Error - The HTTP request to the remote WebDriver timed out after 60 seconds

问题描述

我已经使用Selenium数月了，我们正在使用它来自动化一些内部测试过程.脚本运行良好.我最近已使用FF 27.01升级到C#2.40.0 webdriver，并且我们的脚本现在在随机位置失败，并出现以下错误.

I've been using Selenium for a number of months, which we're using to automate some of our internal testing processes. The scripts have been passing fine. I've recently upgraded to C# 2.40.0 webdriver using FF 27.01 and our scripts are now failing in random places with the following error.

[Portal.SmokeTest.SmokeRunTest.Booking] TearDown method failed. OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL htt(p)://localhost:7055/hub/session/56e99e88-ba17-4d12-bef1-c6a6367ccc2f/element timed out after 60 seconds.
  ----> System.Net.WebException : The operation has timed out
TearDown : OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL htt(p)://localhost:7055/hub/session/56e99e88-ba17-4d12-bef1-c6a6367ccc2f/window timed out after 60 seconds.
  ----> System.Net.WebException : The operation has timed out
[09:01:20]
[Portal.SmokeTest.SmokeRunTest.Booking] TearDown method failed. OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL htt(p)://localhost:7055/hub/session/56e99e88-ba17-4d12-bef1-c6a6367ccc2f/element timed out after 60 seconds.
  ----> System.Net.WebException : The operation has timed out
TearDown : OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL htt(p)://localhost:7055/hub/session/56e99e88-ba17-4d12-bef1-c6a6367ccc2f/window timed out after 60 seconds.
  ----> System.Net.WebException : The operation has timed out
   at OpenQA.Selenium.Support.UI.DefaultWait`1.PropagateExceptionIfNotIgnored(Exception e)
   at OpenQA.Selenium.Support.UI.DefaultWait`1.Until[TResult](Func`2 condition)
   at Portal.Test.Helpers.Process_Bookings.OpenBookings.SelectBooking(String bookingnumber)
   at Portal.SmokeTest.SmokeRunTest.Booking() in d:\TeamCityAgent\work\dac1dcea7f2e80df\SmokeTests\SmokeRunTest.cs:line 68
--WebException
   at System.Net.HttpWebRequest.GetResponse()
   at OpenQA.Selenium.Remote.HttpCommandExecutor.CreateResponse(WebRequest request)
--TearDown
   at OpenQA.Selenium.Remote.HttpCommandExecutor.CreateResponse(WebRequest request)
   at OpenQA.Selenium.Remote.HttpCommandExecutor.Execute(Command commandToExecute)
   at OpenQA.Selenium.Firefox.Internal.ExtensionConnection.Execute(Command commandToExecute)
   at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.Remote.RemoteWebDriver.Close()
   at Portal.Test.Helpers.Setup.CloseWebdriver()
   at Portal.SmokeTest.SmokeRunTest.TearDown() in d:\TeamCityAgent\work\dac1dcea7f2e80df\SmokeTests\SmokeRunTest.cs:line 162
--WebException
   at System.Net.HttpWebRequest.GetResponse()
   at OpenQA.Selenium.Remote.HttpCommandExecutor.CreateResponse(WebRequest request)

我设法跟踪到一行代码的最新错误:

The latest error I've managed to track down to one single line of code:

_setup.driver.FindElement(By.XPath("//button[@class='buttonSmall lockBookingButton']")).Click();

烦人的事情是，试图解决问题非常困难，就像我在本地计算机上运行测试一样，调试通过了.另外，如果我通过构建机器上的NUNIT运行程序运行它，则我正在运行测试，该测试也将通过.使用Teamcity时，它似乎只是作为我们自动构建运行过程的一部分而失败.就像我说的那样，这已经运行了好几个月了，唯一改变的是硒webdriver工具包.

The annoying thing is, trying to fix the problem is proving difficult, as if I run the test on my local machine, in debug it passes. Additionally, if I run it via the NUNIT runner on the build machine I'm running the test off, it also passes. It only seems to fail as part of our automated build running process when using Teamcity. Like I said, this has been running fine for months previously, and the only thing that has changed is the selenium webdriver kit.

我以前在调试时遇到此问题，并且在调用Click()行代码时，Firefox似乎锁定了，只有停止测试才能使Firefox继续.这里有很多建议，包括修改webdriver源代码?如果其他人可以提出任何建议，我希望尽量不要走那条路.

I have experienced this problem before, whilst in debug, and when a Click() line of code was called, Firefox appeared to lock up, and only stopping the test would allow Firefox to continue. There are a number of suggestions on here including modifying the webdriver source? I'd like to not go down that route if possible if anyone else can offer any suggestions.

推荐答案

我在使用Chrome驱动程序(v2.23)/通过TeamCity运行测试时遇到了类似的问题.我可以通过在Chrome选项中添加"no-sandbox"标志来解决此问题:

I had a similar issue using the Chrome driver (v2.23) / running the tests thru TeamCity. I was able to fix the issue by adding the "no-sandbox" flag to the Chrome options:

var options = new ChromeOptions();
options.AddArgument("no-sandbox");

我不确定FF驱动程序是否有类似的选项.据我了解，该问题与TeamCity在SYSTEM帐户下运行Selenium有关.

I'm not sure if there is a similar option for the FF driver. From what I understand the issue has something to do with TeamCity running Selenium under the SYSTEM account.

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