Why Does Selenium Throw a 'NoSuchElementException' When Locating Elements in Chrome?

"NoSuchElementException" for Chrome with Selenium

Issue

While trying to use Selenium on Chrome to interact with QWOP, an error message consistently appears:

selenium.common.exceptions.NoSuchElementException: 
Message: no such element: Unable to locate element
{"method":"id","selector":"window1"
(Session info: chrome=63.0.3239.108
(Driver info: chromedriver=2.34.522913

Cause

The "NoSuchElementException" is raised because the provided locator, id, fails to uniquely identify the desired element.

Solution

To resolve the issue, replace the locator with one that uniquely identifies the canvas element:

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

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