How can I fix "Unsupported locator strategy" for XPATH which contains a valid following-sibling path?

Question

I'm using Selenium for Python 3.x and Chrome webdriver. I would like to locate a price element using XPATH expression. HTML looks:

My XPATH to this element looks in this way and is valid:

//td[contains(text(), 'Montant')]/following-sibling::td/span

I can find element by this XPATH in console by

$x("//td[contains(text(), 'Montant')]/following-sibling::td/span")

ChroPath plugin and XPath helper plugin shows this XPATH as valid too. But when I run the test I get this error:

selenium.common.exceptions.WebDriverException: Message: unknown error: Unsupported locator strategy: //td[contains(text(), 'Sous total')]/following-sibling::td/span (Session info: chrome=78.0.3904.108) (Driver info: chromedriver=2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Linux 4.15.0-70-generic x86_64)

I don't know why this XPATH generates this error and how I can fix this. Additionally, another XPATH axes don't generate the problems.

Answer 1

这管用吗 ？

'//td[contains(text(), 'Montant')]/../td[2]/span'