前两天使用Selenium分布式时，总抛出异常。更新成最新驱动可以解决。其中chrome异常如下，
"platform": "WINDOWS"
File "D:\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "D:\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "D:\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "D:\Python36\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: Unable to create new service: ChromeDriverService
Build info: version: ‘3.141.59‘, revision: ‘e82be7d358‘, time: ‘2018-11-14T08:25:53‘
System info: host: ‘LAPTOP-KNQDG3FN‘, ip: ‘192.168.56.1‘, os.name: ‘Windows 10‘, os.arch: ‘amd64‘, os.version: ‘10.0‘, java.version: ‘1.8.0_201‘
Driver info: driver.version: unknown
【firefox】:https://github.com/mozilla/geckodriver/releases/
【ie】:http://selenium-release.storage.googleapis.com/index.html
【chrome】:http://chromedriver.storage.googleapis.com/index.html
【Selenium】各浏览器(firefox,chrome,ie)驱动下载地址汇总
原文：https://www.cnblogs.com/lilip/p/10460236.html