Why Am I Getting \"WebDriverException: Unknown Error\" in Selenium with Older Chrome Versions?

WebDriverException: Unknown Error in Selenium with Older Chrome Versions

When using Selenium with older versions of Google Chrome, users may encounter the error "WebDriverException: unknown error: cannot find Chrome binary." This error occurs when the ChromeDriver cannot locate the Chrome binary in the expected default location.

Solution:

To resolve this issue, explicitly specify the Chrome binary location using the Options.binary_location property. This property accepts the path to the Chrome binary executable.

<code class="python">from selenium import webdriver
from selenium.webdriver.chrome.options import Options

options = Options()
options.binary_location = "C:\Program Files\Chrome\chrome64_55.0.2883.75\chrome.exe"
driver = webdriver.Chrome('chromedriver.exe', chrome_options=options)</code>

By providing the exact location of the Chrome binary, the ChromeDriver can accurately locate and launch Chrome, resolving the "cannot find Chrome binary" error.

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