Python Selenium with ChromeDriver Headless: Fail To Start-- "DevTools request failed"



我已经在我的Macbook Pro上运行了它,所以为了试图将其传输到我的服务器长时间使用,我遇到了一个障碍。 服务器是Ubuntu 16.04(服务器)和Python 2.7.12。

我使用pip安装了最新版本的Selenium,以及最新版本的ChromeDriver。我可以从命令行启动它(存在GPU错误,但似乎不会引起任何问题。

但是,当我尝试使用以下代码从 python 中启动它时:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
path_to_chromedriver = '/usr/local/bin/chromedriver'
options = Options()
options.add_argument("start-maximized")
options.add_argument("--headless")
options.add_argument("--disable-gpu")
options.add_argument("--disable-extensions")
options.add_argument("--no-sandbox") 
service_args = ['--verbose']
service_log_path = '/tmp/local/chromedriver.log'
driver = webdriver.Chrome(executable_path=path_to_chromedriver, chrome_options=options, service_args=service_args, service_log_path=service_log_path)

但是,当我启动时,这是我在chromedriver中得到的内容.log(毕竟COMMAND InitSession的初始启动脚本:

[0.998][INFO]: Launching chrome: /opt/google/chrome/google-chrome --disable-background-networking --disable-client-side-phishing-detection --disable-default-ap
ps --disable-hang-monitor --disable-popup-blocking --disable-prompt-on-repost --disable-sync --disable-web-resources --enable-automation --enable-logging --ign
ore-certificate-errors --load-extension=/tmp/.org.chromium.Chromium.tPkUXa/internal --log-level=0 --metrics-recording-only --no-first-run --password-store=basi
c --remote-debugging-port=12752 --safebrowsing-disable-auto-update --test-type=webdriver --use-mock-keychain --user-data-dir=/tmp/.org.chromium.Chromium.ODIHcL
data:,
[0.998][DEBUG]: DevTools request: http://localhost:12752/json/version
[1.078][DEBUG]: DevTools request failed

它继续吐出该错误消息大约 60 秒,直到最终在 Python 中返回以下内容:

WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
(Driver info: chromedriver=2.29.461571 (8a88bbe0775e2a23afda0ceaf2ef7ee74e822cc5),platform=Linux 4.4.0-116-generic x86_64)

我一生都无法弄清楚如何解决这个问题,我已经进行了广泛的搜索。

我的印象是,如果我使用无头,我不需要使用任何虚拟屏幕仿真,但这可能是问题所在吗? (我在 Ubuntu 中以没有 GUI 的初始化模式运行。

另外,我不喜欢在该命令中没有传递无头来启动chrome稳定...这是一个问题吗?

谢谢。

编辑:

Chromedriver版本(我得到了我认为是最新版本):

$ chromedriver
Starting ChromeDriver 2.29.461571 (8a88bbe0775e2a23afda0ceaf2ef7ee74e822cc5) on port 9515
Only local connections are allowed.

$ pip freeze | grep selenium
selenium==3.11.0

$ google-chrome --version
Google Chrome 65.0.3325.162

下面是显示正在发生的事情的日志跟踪 - 它在 DevTools 故障上循环 60 秒,然后死亡。

Full log/error trace:
[0.997][INFO]: COMMAND InitSession {
"capabilities": {
"alwaysMatch": {
"browserName": "chrome",
"goog:chromeOptions": {
"args": [ "start-maximized", "--headless", "--disable-gpu", "--disable-extensions", "--no-sandbox" ],
"extensions": [  ]
},
"platformName": "any"
},
"firstMatch": [ {
} ]
},
"desiredCapabilities": {
"browserName": "chrome",
"goog:chromeOptions": {
"args": [ "start-maximized", "--headless", "--disable-gpu", "--disable-extensions", "--no-sandbox" ],
"extensions": [  ]
},
"platform": "ANY",
"version": ""
}
}
[0.997][INFO]: Populating Preferences file: {
"alternate_error_pages": {
"enabled": false
},
"autofill": {
"enabled": false
},
"browser": {
"check_default_browser": false
},
"distribution": {
"import_bookmarks": false,
"import_history": false,
"import_search_engine": false,
"make_chrome_default_for_user": false,
"show_welcome_page": false,
"skip_first_run_ui": true
},
"dns_prefetching": {
"enabled": false
},
"profile": {
"content_settings": {
"pattern_pairs": {
"https://*,*": {
"media-stream": {
"audio": "Default",
"video": "Default"
}
}
}
},
"default_content_setting_values": {
"geolocation": 1
},
"default_content_settings": {
"geolocation": 1,
"mouselock": 1,
"notifications": 1,
"popups": 1,
"ppapi-broker": 1
},
"password_manager_enabled": false
},
"safebrowsing": {
"enabled": false
},
"search": {
"suggest_enabled": false
},
"translate": {
"enabled": false
}
}
[0.997][INFO]: Populating Local State file: {
"background_mode": {
"enabled": false
},
"ssl": {
"rev_checking": {
"enabled": false
}
}
}
[0.998][INFO]: Launching chrome: /opt/google/chrome/google-chrome --disable-background-networking --disable-client-side-phishing-detection --disable-default-apps --disable-hang-monitor --disable-popup-blocking --disable-prompt-on-repost --disable-sync --disable-web-resources --enable-automation --enable-logging --ignore-certificate-errors --load-extension=/tmp/.org.chromium.Chromium.tPkUXa/internal --log-level=0 --metrics-recording-only --no-first-run --password-store=basic --remote-debugging-port=12752 --safebrowsing-disable-auto-update --test-type=webdriver --use-mock-keychain --user-data-dir=/tmp/.org.chromium.Chromium.ODIHcL data:,
[0.998][DEBUG]: DevTools request: http://localhost:12752/json/version
[1.078][DEBUG]: DevTools request failed
...
[61.018][DEBUG]: DevTools request: http://localhost:12752/json/version
[61.018][DEBUG]: DevTools request failed
[61.021][INFO]: RESPONSE InitSession unknown error: Chrome failed to start: exited abnormally
[61.021][DEBUG]: Log type 'driver' lost 0 entries on destruction
[61.021][DEBUG]: Log type 'browser' lost 0 entries on destruction

您的 chrome 驱动程序已过期,适用于您的 chrome 版本。您使用的是chromedriver=2.29.461571但与Chrome65兼容的最新版本的chromedriver2.37

您可以在此处找到适用于您平台的最新 chromedriver:https://sites.google.com/a/chromium.org/chromedriver/downloads

答案是——使用最新版本的chromedriver!

https://sites.google.com/a/chromium.org/chromedriver/downloads

我从我认为是最新脚本的内容复制/粘贴,但它的版本太旧了。

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