selenium.common.exceptions.SessionNotCreatedException：消息：无法通过 Selenium 找到与 Firefox 46 匹配的功能集

我这里肯定有一些版本不匹配，因为我无法使用 Python 来启动 Selenium 来启动 Firefox Web 浏览器。我使用旧版本的 Firefox，因为这里的其他人都使用相同的旧版本 Python，并且对他们来说旧版本的 Firefox 效果最好。

Code:

from selenium import webdriver
from selenium import common
from selenium.webdriver import ActionChains
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.common.exceptions import TimeoutException
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
driver=webdriver.Firefox(capabilities=DesiredCapabilities.FIREFOX)

Error:

Traceback (most recent call last):
  File "scrapeCommunitySelenium.py", line 13, in <module>
    driver=webdriver.Firefox(capabilities=DesiredCapabilities.FIREFOX)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/firefox/webdriver.py", line 158, in __init__
    keep_alive=True)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 154, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 243, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 311, in execute
    self.error_handler.check_response(response)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 237, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: Unable to find a matching set of capabilities

版本信息：

• Python 2.7.10
• 硒3.8.0
• 火狐46.0
• GeckoDriver 0.19.1（它位于我的 PATH 环境变量中的文件夹中）
• macOS 10.12.6

当你正在使用硒3.8.0你必须使用Gecko驱动程序作为强制性的。但当你再次使用时火狐浏览器 v46.0你必须设置能力木偶 as False通过DesiredCapabilities()如下 ：

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

cap = DesiredCapabilities().FIREFOX
cap["marionette"] = False
browser = webdriver.Firefox(capabilities=cap, executable_path="C:\\path\\to\\geckodriver.exe")
browser.get('http://google.com/')
browser.quit()