我无法单击元素定位器。显示的错误是：
Selenium::WebDriver::Error::UnknownError: unknown error: Cannot read property 'defaultView' of undefined
(Session info: chrome=58.0.3029.110)
(Driver info: chromedriver=2.29.461571 (8a88bbe0775e2a23afda0ceaf2ef7ee74e822cc5),platform=Linux 4.4.0-31-generic x86_64)