What does Backtrace: Ordinal0 [0x00723AB3 2505395] in stack trace error means while using Selenium a-CodePudding

I'm relatively new to coding and kinda unfamiliar with stacktrace errors. I have been given this error, but im not sure which part of my code do i fix? Did the error come up because of a NoSuchElementException, or was it due to a timeout error?

I thought that within my code I had dealt with how the program will face the nosuchelement exception. Basically, my code searches for slots that are available and will disable the back button when a slot becomes available. However, I am met with other sorts of error such as connection time out when the webpage has been idle for too long. Thus, my mission now is to filter out the different problems i am faced with so that i can deal with the issues respectively. I have added the expected conditions as the filter to differentiate the errors i am faced with

Code:

no_slot = True
while no_slot == 1:
    for i in range(60):
        search_button = browser.find_element(By.NAME, "btnSearch")
        search_button.click()
        try:
            noslot_back_button = browser.find_element(By.CSS_SELECTOR, 'input[name="btnBack"]')
        except NoSuchElementException:
            if EC.presence_of_element_located(browser.find_element(By.XPATH, '//td[@]')):
                # Proceed with booking (make sure that it is at the booking page (implementation)
                slot_radio_info = browser.find_element(By.NAME, 'slot')
                slot_id = slot_radio_info.get_attribute('id')
                radio_button = browser.find_element(By.XPATH, '//input[@id="'   str(slot_id)   '"]')
                radio_button.click()
                slot_submit_button = browser.find_element(By.CSS_SELECTOR, 'input[value="Submit"]')
                WebDriverWait(EC.element_to_be_clickable(slot_submit_button))
                slot_submit_button.click()
                double_cfm_button = browser.find_element(By.CSS_SELECTOR, 'input[value="Confirm"]')
                double_cfm_button.click()
            elif not EC.title_contains('BBDC: Booking For TP Driving Simulator Lesson'):
                print("Connection timed out or something else happened")
            else:
                print("unaccounted condition")

Error received:

Traceback (most recent call last):
  File "C:/Users/Jonathan/PycharmProjects/Riddle/BBDC.py", line 83, in <module>
    noslot_back_button = browser.find_element(By.CSS_SELECTOR, 'input[name="btnBack"]')
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 1238, in find_element
    return self.execute(Command.FIND_ELEMENT, {
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 418, in execute
    self.error_handler.check_response(response)
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 243, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"input[name="btnBack"]"}
  (Session info: chrome=95.0.4638.69)
Stacktrace:
Backtrace:
    Ordinal0 [0x00723AB3 2505395]
    Ordinal0 [0x006BAE41 2076225]
    Ordinal0 [0x005C2498 1057944]
    Ordinal0 [0x005ECB74 1231732]
    Ordinal0 [0x00616D92 1404306]
    Ordinal0 [0x00605A2A 1333802]
    Ordinal0 [0x00615168 1397096]
    Ordinal0 [0x006058BB 1333435]
    Ordinal0 [0x005E23E4 1188836]
    Ordinal0 [0x005E323F 1192511]
    GetHandleVerifier [0x008ACB36 1554566]
    GetHandleVerifier [0x00954A0C 2242396]
    GetHandleVerifier [0x007B0E0B 523099]
    GetHandleVerifier [0x007AFEB0 519168]
    Ordinal0 [0x006C02FD 2097917]
    Ordinal0 [0x006C4388 2114440]
    Ordinal0 [0x006C44C2 2114754]
    Ordinal0 [0x006CE041 2154561]
    BaseThreadInitThunk [0x7739FA29 25]
    RtlGetAppContainerNamedObjectPath [0x77987A9E 286]
    RtlGetAppContainerNamedObjectPath [0x77987A6E 238]


During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Jonathan\PyCharm\plugins\python-ce\helpers\pydev\pydevd.py", line 1483, in _exec
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "C:\Users\Jonathan\PyCharm\plugins\python-ce\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents "\n", file, 'exec'), glob, loc)
  File "C:/Users/Jonathan/PycharmProjects/Riddle/BBDC.py", line 86, in <module>
    if EC.presence_of_element_located(browser.find_element(By.XPATH, '//td[@]')):
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 1238, in find_element
    return self.execute(Command.FIND_ELEMENT, {
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 418, in execute
    self.error_handler.check_response(response)
  File "C:\Users\Jonathan\venvs\automation\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 243, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//td[@hljs-string">"]"}
  (Session info: chrome=95.0.4638.69)
Stacktrace:
Backtrace:
    Ordinal0 [0x00723AB3 2505395]
    Ordinal0 [0x006BAE41 2076225]
    Ordinal0 [0x005C2498 1057944]
    Ordinal0 [0x005ECB74 1231732]
    Ordinal0 [0x00616D92 1404306]
    Ordinal0 [0x00605A2A 1333802]
    Ordinal0 [0x00615168 1397096]
    Ordinal0 [0x006058BB 1333435]
    Ordinal0 [0x005E23E4 1188836]
    Ordinal0 [0x005E323F 1192511]
    GetHandleVerifier [0x008ACB36 1554566]
    GetHandleVerifier [0x00954A0C 2242396]
    GetHandleVerifier [0x007B0E0B 523099]
    GetHandleVerifier [0x007AFEB0 519168]
    Ordinal0 [0x006C02FD 2097917]
    Ordinal0 [0x006C4388 2114440]
    Ordinal0 [0x006C44C2 2114754]
    Ordinal0 [0x006CE041 2154561]
    BaseThreadInitThunk [0x7739FA29 25]
    RtlGetAppContainerNamedObjectPath [0x77987A9E 286]
    RtlGetAppContainerNamedObjectPath [0x77987A6E 238]

python-BaseException
Traceback (most recent call last):
  File "C:\Users\Jonathan\PyCharm\plugins\python-ce\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 292, in _on_run
    r = self.sock.recv(1024)
TimeoutError: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

Process finished with exit code 1

CodePudding user response：

Selenium is unable to locate the element noslot_back_button = browser.find_element(By.CSS_SELECTOR, 'input[name="btnBack"]') most likely a typo or maybe you forgot to name the css selector.

CodePudding user response：

This error message...

Traceback (most recent call last):
.
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"input[name="btnBack"]"}
  (Session info: chrome=95.0.4638.69)
Stacktrace:
Backtrace:
    Ordinal0 [0x00723AB3 2505395]
    Ordinal0 [0x006BAE41 2076225]
    Ordinal0 [0x005C2498 1057944]

...implies that NoSuchElementException was raised while locating the elements.

Addressing NoSuchElementException

Without the relevant HTML of the element it would be difficult to address if the Locator Strategy identifies the element uniquely within the HTML DOM.

Additionally, though you are using chrome=95.0.4638.69 but your ChromeDriver version isn't in sync with the Chrome browser version. Hence you see the Backtrace.

Solution

Ensure that:

ChromeDriver is updated to current ChromeDriver v95.0 level.