# Selenium - Notes - 3

## Issues

### Element is not attached to the page document
selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document

#### Solution 1
https://www.crifan.com/selenium_by_id_got_element_click_error_element_is_not_attached_to_the_page_document/
Refresh the current page before locating and interacting with the element.

self.driver.refresh()

target = (By.XPATH, "//a[text()='"+targetStr+"']")
targetElement = WebDriverWait(self.driver, 10).until(EC.element_to_be_clickable(targetUnit))
targetElement.click()

#### Solution 2
Add `wait` to wait until the element is displayed or exists.

### Element cannot be located after switching to another page

#### Solution
When switching from a page to another page, can assign the webdriver of the current page to the next page object. (Refresh the page to ensure element loading)

previousPage = PreviousPage()
previousPage.driver = currentPage.driver
currentPage.driver.refresh()

###### tags: `selenium` `test automation` `software test`