Raspbian Jessie - PhantomJS未知选项

Question

我在Raspbian 8（Jessie）上，最近安装了Selenium和PhantomJS（分别使用sudo pip install selenium和sudo apt-get install phantomjs）。现在，当我尝试在Python交互式终端中运行以下代码时

from selenium import webdriver
driver = webdriver.PhantomJS()

第二行最终以此跟踪失败：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/phantomjs/webdriver.py", line 52, in __init__
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 96, in start
    self.assert_process_still_running()
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 109, in assert_process still running
    % (self.path, return_code)
selenium.common.exceptions.WebDriverException: Message: Service phantomjs unexpectedly exited. Status code was: 0

并且ghostdriver.log文件显示为：

Unknown option '--webdriver=46183'

我不知道为什么会这样，并会感谢一些帮助。谢谢！