WebDriverException：消息：无效参数：无法在RaspberryPi3

Question

服务器：Raspberry Pi 3 

操作系统：Dietpi-版本159 

Geckodriver版本：用于手臂的0.22 

Firefox版本：52.9.0 

Python版本：3.5 

Selenium版本：3.14.1

Gecko是可执行文件，位于/ usr / local / bin /

from selenium import webdriver

from selenium.webdriver.common.by import By

from selenium.webdriver.support.ui import WebDriverWait

from selenium.webdriver.support import expected_conditions as EC

from selenium.webdriver.firefox.options import Options

import time

options = Options()

options.set_headless(headless=True)

driver = webdriver.Firefox(firefox_options=options)

print('Need your login credential')

username = input('What is your username?:\n')

password = input('What is your password?:\n')

...

...

输出：

root@RPi3:~# python3.5 ITE-bot.py 

Traceback (most recent call last):

  File "ITE-bot.py", line 12, in <module>

    driver = webdriver.Firefox(firefox_options=options)

  File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/firefox/webdriver.py", line 174, in __init__

    keep_alive=True)

  File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__

    self.start_session(capabilities, browser_profile)

  File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session

    response = self.execute(Command.NEW_SESSION, parameters)

  File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute

    self.error_handler.check_response(response)

  File "/usr/local/lib/python3.5/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response

    raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: invalid argument: can't kill an exited process

知道有什么问题吗？我试过谷歌没有运气。

Answer 1

是的，选中了在构建可以解决问题之前启动Xvfb，但是如果您有管道或多分支管道之类的工作，则此选项不可见。在执行测试的Selenium网格节点中，您需要：1-安装Xvfb： apt install xvfb2-执行Xvfb： /usr/bin/Xvfb :99 -ac -screen 0 1024x768x8 & export DISPLAY=":99"3-重新运行您的节点，例如： java -jar selenium.jar -role node -hub http://#.#.#.#:4444/grid/register -capabilities browserName=firefox,plataform=linux -host #.#.#.# -port 1991