我能够在终端上运行脚本而不会出现问题，但是通过cron运行脚本时会收到以下错误：
driver = webdriver.PhantomJS(executable_path='/usr/local/bin/phantomjs')
File "/usr/lib/python2.6/site-packages/selenium-3.6.0-py2.6.egg/selenium/webdriver/phantomjs/webdriver.py", line 52, in __init__
self.service.start()
File "/usr/lib/python2.6/site-packages/selenium-3.6.0-
py2.6.egg/selenium/webdriver/common/service.py", line 102, in start
raise WebDriverException("Can not connect to the Service %s" % self.path)
selenium.common.exceptions.WebDriverException: Message: Can not connect to the
Service /usr/local/bin/phantomjs
知道为什么会这样吗？