locating element with selenium after login

[sumandas89]

I wrote a script to locate the search bar in my facebook home page. Code for login into my facebook profile using selenium worked perfectly. I got the home page, but the code for locating the search bar is not working correctly. I tried the to locate the search bar using the following code -

elem = driver.find_element_by_name("q")

and I am getting the below error message -

Error:
/usr/bin/python2.7 /home/csurv_4/PycharmProjects/web_parsing/entering_in_page.py
Traceback (most recent call last):
  File "/home/csurv_4/PycharmProjects/web_parsing/entering_in_page.py", line 14, in <module>
    elem = driver.find_element_by_name("q")
  File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 487, in find_element_by_name
    return self.find_element(by=By.NAME, value=name)
  File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 955, in find_element
    'value': value})['value']
  File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 312, in execute
    self.error_handler.check_response(response)
  File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 237, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate element: [name="q"]

What is the reason of this error? and what is the solution?

[metulburr]

You either 1) didnt give it time to locate that element (add a time.sleep(3) before finding the name to test to make sure its loaded) or you can try the xpath
/html/body/div[1]/div[2]/div/div[1]/div/div/div/div[1]/div[2]/div/form/div/div/div/div/input[2]