Error:

ERROR:asyncio:Task exception was never retrieved2022-03-14T14:08:52.425684+00:00 app[worker.1]: future: <Task finished name='Task-30' coro=<Dispatcher._process_polling_updates() done, defined at /app/.heroku/python/lib/python3.9/site-packages/aiogram/dispatcher/dispatcher.py:407> exception=NoSuchElementException('no such element: Unable to locate element: {"method":"css selector","selector":".media-cards-grid"}\n  (Session info: headless chrome=99.0.4844.51)', None, ['#0 0x5586a25c17d3 <unknown>', '#1 0x5586a231d688 <unknown>', '#2 0x5586a2353c21 <unknown>', '#3 0x5586a2353de1 <unknown>', '#4 0x5586a2386d74 <unknown>', '#5 0x5586a23716dd <unknown>', '#6 0x5586a2384a0c <unknown>', '#7 0x5586a23715a3 <unknown>', '#8 0x5586a2346ddc <unknown>', '#9 0x5586a2347de5 <unknown>', '#10 0x5586a25f249d <unknown>', '#11 0x5586a260b60c <unknown>', '#12 0x5586a25f4205 <unknown>', '#13 0x5586a260bee5 <unknown>', '#14 0x5586a25e8070 <unknown>', '#15 0x5586a2627488 <unknown>', '#16 0x5586a262760c <unknown>', '#17 0x5586a2640c6d <unknown>', '#18 0x7f9745a5d609 <unknown>', ''])>

Here is the problematic part of the code:

    chrome_options = webdriver.ChromeOptions()chrome_options.binary_location = os.environ.get("GOOGLE_CHROME_BIN")chrome_options.add_argument("--headless")chrome_options.add_argument("--disable-dev-shm-usage")chrome_options.add_argument("--no-sandbox")driver = webdriver.Chrome(executable_path=os.environ.get("CHROMEDRIVER_PATH"), chrome_options=chrome_options)driver.get(link)block = driver.find_element(by=By.CLASS_NAME, value='media-cards-grid')all_image = block.find_elements(by=By.CLASS_NAME, value='media-card')all_image = all_image[0:10]for image in all_image:image_link = image.get_attribute('data-src')name = image.find_element(By.CLASS_NAME, 'media-card__title').textref = image.get_attribute('href')manga = InlineKeyboardMarkup()manga.add(InlineKeyboardButton(name, url=ref))await bot.send_photo(chat_id=callback.message.chat.id, photo=image_link, reply_markup=manga)shwmrrslts = InlineKeyboardMarkup()shwmrrslts.add(InlineKeyboardButton('show more results', url=link))await callback.message.answer('if you want to see more, click on the button', reply_markup=shwmrrslts)

I searched for a solution on the internet but never found it. also, this code worked fine from my computer:

    driver = webdriver.Firefox()driver.get(link)block = driver.find_element(By.CLASS_NAME, 'media-cards-grid')all_image = block.find_elements(By.CLASS_NAME, 'media-card')all_image = all_image[0:10]# print(type(all_image))for image in all_image:image_link = image.get_attribute('data-src')name = image.find_element(By.CLASS_NAME, 'media-card__title').textref = image.get_attribute('href')manga = InlineKeyboardMarkup()manga.add(InlineKeyboardButton(name, url=ref))await bot.send_photo(chat_id=callback.message.chat.id, photo=image_link, reply_markup=manga)shwmrrslts = InlineKeyboardMarkup()shwmrrslts.add(InlineKeyboardButton('show more results', url=link))await callback.message.answer('if you want to see more, click on the button', reply_markup=shwmrrslts)

sorry for my bad english, thanks in advance sorry

This error message...

NoSuchElementException('no such element: Unable to locate element: {"method":"css selector","selector":".media-cards-grid"

...implies that the NoSuchElementException was raised when trying to locate the desired element through the following locator strategy:

(by=By.CLASS_NAME, value='media-cards-grid')

You need to construct a more canonical locator strategy which identifies the element uniquely within the DOM Tree

References

You can find a couple of relevant discussions on NoSuchElementException in:

• selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element while trying to click Next button with selenium
• selenium in python : NoSuchElementException: Message: no such element: Unable to locate element