Selenium Firefox Python 在无头模式下运行 初始化驱动程序超时

Question

• Firefox version: 60.9.0esr (32-bit)
• Selenium version: 3.141.0
• Geckodriver version: 0.24.0 (32-bit)

So everything currently works in non-headless mode. But I need to run this python script in a GUI-less linux server (thus need headless mode). For some reason, all my attempts to run headlessly results in selenium web driver timing out on initialization.

        from selenium import webdriver

        geckoDriverFilepath = path + "geckodriver24_32.exe"

        opts = webdriver.FirefoxOptions()
        opts.add_argument("--headless")
        opts.add_argument("--width=2560")
        opts.add_argument("--height=1440")

        #initialize driver (breaks/timeouts here)
        driver = webdriver.Firefox(options=opts,executable_path=geckoDriverFilepath)

The following is the Traceback:

File "c:\Users\xUser\Desktop\BOMWebService\Backend\code\FirefoxStarter.py", line 51, in StartFirefox driver = webdriver.Firefox(options=opts,executable_path=geckoDriverFilepath)

File "C:\Users\xUser\Desktop\BOMWebService\Backend\virEnvBOMBackend\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 174, in init keep_alive=True)

File "C:\Users\xUser\Desktop\BOMWebService\Backend\virEnvBOMBackend\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in init self.start_session(capabilities, browser_profile)

File "C:\Users\xUser\Desktop\BOMWebService\Backend\virEnvBOMBackend\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session response = self.execute(Command.NEW_SESSION, parameters)

File "C:\Users\xUser\Desktop\BOMWebService\Backend\virEnvBOMBackend\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute self.error_handler.check_response(response)

File "C:\Users\xUser\Desktop\BOMWebService\Backend\virEnvBOMBackend\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: timed out

Any pointers would be much appreciated. Thanks!

Answer 1

This error message...

selenium.common.exceptions.WebDriverException: Message: timed out

...implies that the GeckoDriver was unable to initiate/spawn a new WebBrowser ie Firefox Browser session.

Your main issue is the incompatibility between the version of the binaries you are using as follows:

• Your Selenium Client version is 3.141.0 which is almost a bit older.
• Your GeckoDriver version is v0.24.0 .
• Your Firefox version is v60.9.0esr .

So there is a clear mismatch between Selenium Client v3.141.0 , GeckoDriver v0.24.0 and the Firefox Browser v60.9.0esr

---

Solution

• Upgrade Selenium to current levels Version 3.141.59 .
• Upgrade GeckoDriver to GeckoDriver v0.26.0 level.
• GeckoDriver is present in the desired location.
• GeckoDriver is having executable permission for non-root users.
• Upgrade Firefox version to Firefox v70.0 levels.
• Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
• If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client .
• Take a System Reboot .
• Execute your Test as a non-root user.
• Always invoke driver.quit() within tearDown(){} method to close & destroy the WebDriver and Web Client instances gracefully.

Here you can find a detailed discussion on Which Firefox browser versions supported for given Geckodriver version?