我试图用一个URL启动chrome浏览器，浏览器启动后，它什么也不做。
1分钟后我看到如下错误:
Unable to open browser with url: 'https://www.google.com' (Root cause: org.openqa.selenium.WebDriverException: unknown error: DevToolsActivePort file doesn't exist
(Driver info: chromedriver=2.39.562718 (9a2698cba08cf5a471a29d30c8b3e12becabb0e9),platform=Windows NT 10.0.15063 x86_64) (WARNING: The server did not provide any stacktrace information)
我的配置:
Chrome浏览器:66 ChromeBrowser: 2.39.56
又及，在Firefox中一切都很好
当前回答
正如在另一个答案中所述:
此错误消息…这意味着ChromeDriver无法启动/生成一个新的WebBrowser，即Chrome浏览器会话。
Among the possible causes, I would like to mention the fact that, in case you are running an headless Chromium via Xvfb, you might need to export the DISPLAY variable: in my case, I had in place (as recommended) the --disable-dev-shm-usage and --no-sandbox options, everything was running fine, but in a new installation running the latest (at the time of writing) Ubuntu 18.04 this error started to occurr, and the only possible fix was to execute an export DISPLAY=":20" (having previously started Xvfb with Xvfb :20&).
其他回答
对我来说，问题在于systemD服务文件。我将shell环境传递为venv
Environment="proejct/venv/bin"
当我添加/bin:/usr/bin到Environment:
Environment="proejct/venv/bin:/usr/bin:/bin"
最后，它成功了。
在我的情况下，当我改变google-chrome和chromedriver版本时，错误被修复了:)
#google-chrome version
[root@localhost ~]# /usr/bin/google-chrome --version
Google Chrome 83.0.4103.106
#chromedriver version
[root@localhost ~]# /usr/local/bin/chromedriver -v
ChromeDriver 83.0.4103.14 (be04594a2b8411758b860104bc0a1033417178be-refs/branch-heads/4103@{#119})
Ps:硒版本为3.9.1
我在Docker容器中通过Behat/Mink和Selenium运行Chrome时也遇到了同样的问题。经过一番折腾，我得出了如下结论。Yml提供上面提到的开关。请注意，要使它成功运行，所有这些都是必需的。
default:
extensions:
Behat\MinkExtension:
base_url: https://my.app/
default_session: selenium2
selenium2:
browser: chrome
capabilities:
extra_capabilities:
chromeOptions:
args:
- "headless"
- "no-sandbox"
- "disable-dev-shm-usage"
I started seeing this problem on Monday 2018-06-04. Our tests run each weekday. It appears that the only thing that changed was the google-chrome version (which had been updated to current) JVM and Selenium were recent versions on Linux box ( Java 1.8.0_151, selenium 3.12.0, google-chrome 67.0.3396.62, and xvfb-run). Specifically adding the arguments "--no-sandbox" and "--disable-dev-shm-usage" stopped the error. I'll look into these issues to find more info about the effect, and other questions as in what triggered google-chrome to update.
ChromeOptions options = new ChromeOptions();
...
options.addArguments("--no-sandbox");
options.addArguments("--disable-dev-shm-usage");
在我的例子中，当我试图使用我的默认用户配置文件时，它发生了:
...
options.addArguments("user-data-dir=D:\\MyHomeDirectory\\Google\\Chrome\\User Data");
...
这触发chrome重用已经在后台运行的进程，以这种方式，由chromedriver.exe启动的进程简单地结束。
解决方法:关闭所有在后台运行的chrome.exe进程。
