Selenium Errors
8 common Selenium errors with verified solutions.
StaleElementReferenceException
The element previously located is no longer attached to the DOM. The page was refreshed, navigated, or the element was re-rendered by JavaScript.
NoSuchElementException
No element matching the locator strategy could be found in the current page DOM. The element may not exist, may not have loaded yet, or the locator may be incorrect.
ElementNotInteractableException
The element exists in the DOM but cannot be interacted with. It may be hidden, disabled, or covered by another element.
ElementClickInterceptedException
The click command could not be completed because another element would receive the click at the target coordinates. A different element is covering the target.
SessionNotCreatedException: Could not start a new session
WebDriver could not create a new browser session. Usually caused by a version mismatch between the browser and the driver.
WebDriverException: 'chromedriver' executable needs to be in PATH
The WebDriver binary (chromedriver, geckodriver, etc.) cannot be found in the system PATH. Selenium needs the driver binary to communicate with the browser.
InvalidSelectorException
The selector expression (CSS or XPath) is malformed and cannot be parsed by the browser.
UnexpectedAlertPresentException
A JavaScript alert, confirm, or prompt dialog appeared unexpectedly, blocking automation. Selenium cannot interact with the page until the alert is dismissed.