报错：[error] Could not connect to Selenium Server. Have you started the Selenium Server yet?
解决：selenium两种驱动方式，一是use selenium IDE,一种是use selenium webdriver。在options里去掉勾选enable webdriver playback即可。
Google答案地址。
问题：seleniumIDE录制时遇到新开窗口的链接_blank,回访时会出现焦点扔停留在旧窗口下，无法操作新窗口，报错无法找到页面元素？
解决：使用selectPopUp命令，选择弹出窗口，然后继续下一步操作即可。
报错：raceback (most recent call last):
File "C:\Users\Administrator\Desktop\selenium\chrome.py", line 4, in <module>
driver=webdriver.Firefox()
File "C:\Python27\lib\selenium\webdriver\firefox\webdriver.py", line 59, in __init__
self.binary, timeout),
File "C:\Python27\lib\selenium\webdriver\firefox\extension_connection.py", line 47, in __init__
self.binary.launch_browser(self.profile)
File "C:\Python27\lib\selenium\webdriver\firefox\firefox_binary.py", line 66, in launch_browser
self._wait_until_connectable()
File "C:\Python27\lib\selenium\webdriver\firefox\firefox_binary.py", line 105, in _wait_until_connectable
raise WebDriverException("Can‘t load the profile. Profile "
WebDriverException: Message: Can‘t load the profile. Profile Dir: %s If you specified a log_file in the FirefoxBinary constructor, check it for details.
解决：外国网友说是selenium和firefox不兼容，需要倒退firefox的版本
http://stackoverflow.com/questions/6682009/selenium-firefoxprofile-exception-cant-load-the-profile
报错：[error] Could not connect to Selenium Server. Have you started the Selenium Server yet?
解决：启用服务java -jar C:\seleniumRC\selenium-server-1.0.3\selenium-server-standalone-2.45.0.jar
如果启用失败，查看端口netstat -ano 关闭被占用的端口。