Selenium Chrome报错DevToolsActivePort不存在及chrome not reachable求助

问题描述 #

编写网站测试脚本时，原本运行正常，后续出现报错：DevToolsActivePort file doesn't exist。添加参数options.add_argument("--remote-debugging-port=9222")尝试修复后，又出现新报错：chrome not reachable，多种方案尝试后未解决。

代码示例 #

from selenium import webdriver

# options
options = webdriver.ChromeOptions()
options.add_argument("--no-sandbox")
options.add_argument("user-agent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0")
options.add_argument("--disable-blink-features=AutomationControlled")
options.add_argument("--remote-debugging-port=9222")
options.headless = True

driver = webdriver.Chrome(
    executable_path="/home/adfs_bot/chromedriver",
    options=options
)
driver.get('https://google.com/')

报错信息 #

Traceback (most recent call last):
  File "my_script1.py", line 22, in <module>
    options=options
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    desired_capabilities=desired_capabilities)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed.
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)


Traceback (most recent call last):
  File "my_script1.py", line 22, in <module>
    options=options
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    desired_capabilities=desired_capabilities)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/home/<usr>/my_script/venvADFSBot/lib64/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed.
  (chrome not reachable)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

环境信息 #

• Google Chrome版本：106.0.5249.119
• ChromeDriver版本：106.0.5249.61
• 操作系统：CentOS 8 (RedHat)

解决方案 #

1. 严格匹配Chrome与ChromeDriver版本 #

当前Chrome版本为106.0.5249.119，ChromeDriver为106.0.5249.61，小版本号不一致会导致兼容性问题。下载对应Chrome版本的ChromeDriver（106.0.5249.119）替换现有文件，确保版本完全对齐。

2. 优化Chrome启动参数 #

修改参数列表，解决端口冲突、资源不足等问题：

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument("--no-sandbox")
options.add_argument("--disable-dev-shm-usage")  # 解决CentOS /dev/shm空间不足问题
options.add_argument("user-agent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0")
options.add_argument("--disable-blink-features=AutomationControlled")
options.add_argument("--remote-debugging-port=0")  # 自动分配可用端口，避免冲突
options.add_argument("--window-size=1920,1080")  # 无头模式下指定窗口大小，保证渲染正常
options.binary_location = "/usr/bin/google-chrome"  # 明确指定Chrome二进制路径
options.headless = True

driver = webdriver.Chrome(
    executable_path="/home/adfs_bot/chromedriver",
    options=options
)
driver.get('https://google.com/')

3. 修复权限与清理残留进程 #

• 给ChromeDriver添加执行权限：

  chmod +x /home/adfs_bot/chromedriver
  

• 清理残留的Chrome/ChromeDriver进程：

  pkill -f chrome
  pkill -f chromedriver
  

  执行完后重新运行脚本。

内容的提问来源于stack exchange，提问作者depak