Why is my Selenium 'Next' Button Click Failing, and How Can I Fix It?

Error Encountered during Click Operation on "Next" Button with Selenium

The error message encountered, "selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element," indicates that the ChromeDriver is unable to locate the desired button. This could be due to a mismatch between the ChromeDriver version and the browser version in use.

Incorrect Selection of Element Location Strategy

The provided code attempts to locate the button using the name attribute ("submitNext"). However, the code could be enhanced by using CSS or XPath locators as they provide greater flexibility and robustness in identifying elements. Consider the following examples:

• CSS selector:

  driver.find_element_by_css_selector("input[name='submitNext'][value='Next']").click()

• XPath:

  driver.find_element_by_xpath("//input[@name='submitNext' and @value='Next']").click()

Version Compatibility Issue

The provided error message also highlights a version incompatibility between the ChromeDriver and the Chrome browser. Specifically, the version of ChromeDriver being used (2.36) is incompatible with the version of Chrome (66.0). To address this issue, it is recommended to upgrade both Selenium and ChromeDriver to their latest versions.

Troubleshooting Steps

To resolve this issue, the following steps can be taken:

• Upgrade Selenium to version 3.11.0 or later.
• Upgrade ChromeDriver to version 2.38 or later.
• Ensure the Chrome version is within the supported range (Chrome v65-67 for ChromeDriver v2.38).
• Clean the project workspace and rebuild it.
• Use a tool like CCleaner to remove system debris.
• Uninstall and reinstall the latest version of the web client.
• Restart the system.
• Execute the test again.

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