Why Am I Getting a 'selenium.common.exceptions.NoSuchElementException' When Using Selenium with Chrome?

"selenium.common.exceptions.NoSuchElementException" When Running Selenium on Chrome

Selenium's "NoSuchElementException" occurs when it fails to locate an element in the HTML DOM. In this case, you're encountering this error while using Chrome to play QWOP using Selenium.

Reason

The Selenium code you provided uses "find_element_by_id" to locate the "window1" element. However, this locator may not uniquely identify the element within the DOM, leading to the "NoSuchElementException."

Solution

To resolve this issue, you can use a more specific locator strategy, such as:

• XPath: //canvas[@id='window1']
• CSS selector: canvas#window1

Additionally, ensure that the element is visible and within the viewport before attempting to locate it. If necessary, use WebDriverWait with expected conditions like element_to_be_clickable to wait for the element to be clickable before interacting with it.

Chrome-Specific Case

In this specific case, you need to wait for the "window1" canvas to be clickable before clicking on it:

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//canvas[@id='window1']"))).click()

Additional Considerations

• Element Visibility: The element may be hidden or off-screen. Ensure it is visible and within the viewport.
• IFrames: Check if the element is located within an iframe. If so, you need to switch to the appropriate frame first.
• Timing: The element may not be present in the DOM immediately. Use WebDriverWait with appropriate expected conditions to wait for the presence or visibility of the element.

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