org.openqa.selenium.WebDriverException: chrome 无法访问 - 尝试启动新会话时 [英] org.openqa.selenium.WebDriverException: chrome not reachable - when attempting to start a new session

问题描述

当我在 Chrome 上运行我的测试时，我经常收到一个 WebdriverException，表明 Chrome 无法访问.它不会每次都发生.也许每 15 次一次.我必须在 Windows 机器上运行所有东西，而且我拥有最新的 Chrome、Chromedriver、Selenium-Webdriver 版本.

When I run my tests on Chrome I often get a WebdriverException that Chrome is not reachable. It doesn't happen every time. Maybe once every 15 times. I am having to run everything on Windows machines and I have the latest Chrome, Chromedriver, Selenium-Webdriver versions.

我尝试设置环境变量DBUS_SESSION_BUS_ADDRESS=/dev/null".根本没有帮助.

I've tried setting the environmental variable "DBUS_SESSION_BUS_ADDRESS=/dev/null". Doesn't help at all.

有人遇到过这个问题并找到了解决方案吗?

Anyone come across this and found a solution?

org.openqa.selenium.WebDriverException: chrome not reachable
  (Driver info: chromedriver=2.35.528161 (5b82f2d2aae0ca24b877009200ced9065a772e73),platform=Windows NT 6.1.7601 SP1 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 62.52 seconds
Build info: version: '2.52.0', revision: '4c2593cfc3689a7fcd7be52549167e5ccc93ad28', time: '2016-02-11 11:22:43'
System info: host: 'CORPMNA7158A', ip: '10.26.195.163', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_144'
Driver info: org.openqa.selenium.chrome.ChromeDriver

推荐答案

这个错误确实给了我们一些提示，如下:

The error does gives us some hint as follows :

org.openqa.selenium.WebDriverException: chrome not reachable

这实质上意味着 chromedriver 二进制文件无法生成新的 Chrome 浏览器 进程.

Which essentially implies that chromedriver binary is unable to spawn a new Chrome Browser process.

您的主要问题是您使用的二进制文件之间的版本兼容性，如下所示:

Your main issue is the version compatibility among the binaries you are using as follows :

• 您正在使用 chromedriver=2.35.528161(发布于 2018-01-10)
• chromedriver=2.35的发行说明 清楚地提到了以下内容:

• You are using chromedriver=2.35.528161 (released 2018-01-10)
• Release Notes of chromedriver=2.35 clearly mentions the following :

支持 Chrome v62-64

• 您提到使用最新的 Chrome.我想它是 chrome=65.x
• 您正在使用 Selenium 版本 2.52.0(发布于 2016-02-11 11:22:43)[as根据您问题中的错误堆栈跟踪]

所以 Selenium Version 2.52.0 和 chromedriver=2.35.528161 发布之间的时间间隔几乎 2 年并且不兼容.因此，ChromeDriver 有时无法生成新的 Chrome 浏览器 进程.

So the time gap between the release of Selenium Version 2.52.0 and chromedriver=2.35.528161 is almost 2 Years and are not compatible. Hence ChromeDriver is unable to spawn the new Chrome Browser process at times.

• 将 ChromeDriver 保持在 v2.35 级别.
• 将 Chrome 降级到稳定的 Chrome v64.x 级别.(根据 ChromeDriver v2.35 发行说明)
• 将 Selenium 升级到当前级别3.8.1 版.
• 执行您的Test.
• Keep the ChromeDriver at v2.35 level.
• Downgrade Chrome to stable Chrome v64.x levels. (as per ChromeDriver v2.35 release notes)
• Upgrade Selenium to current levels Version 3.8.1.
• Execute your Test.

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