ERROR: test_godeye_main_usercenter (TestCases.Test_Usercenter.Test_Usercenter)

Traceback (most recent call last):
File"/Users/guocg/Documents/workspace/AppiumAndrTest/src/TestCases/Test_Usercenter.py", line 50, in test_usercenter self.driver.find_element_by_id('cate_icon1').click()
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 199, in find_element_by_id
return self.find_element(by=By.ID, value=id_)
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 655, in find_element
{'using': by, 'value': value})['value']
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 166, in execute
self.error_handler.check_response(response)
File "build/bdist.macosx-10.9-intel/egg/appium/webdriver/errorhandler.py", line 28, in check_response
raise wde
NoSuchElementException: Message: u'An element could not be located on the page using the given search parameters.'

Ran 1 test in 11.674s

FAILED (errors=1)