Session creation exception: Resolving selenium.common.exceptions.SessionNotCreatedException

If you have encountered the “selenium.common.exceptions.SessionNotCreatedException” exception while using the Selenium library for Python, then you have come to the right place.

This article will detail how to solve this problem and provide you with some possible causes and solutions for the exception.

Selenium is a very popular automated testing tool that can simulate real user behavior on the browser, such as navigating, filling out forms, clicking buttons, and more.

However, when executing the script, you may encounter a "SessionNotCreatedException" exception.

This exception usually indicates that Selenium is unable to create a new web browser session.

The following are some possible causes of "SessionNotCreatedException" exceptions:

Browser version incompatibility: Please make sure you are using the latest version of the browser that is compatible with your version of Selenium.
Missing driver: Every browser requires a corresponding driver to work with Selenium. Please confirm that the correct driver is installed and add its path to your computer environment variables.
Browser protected mode turned on: The protected mode of some browsers may prevent Selenium from interacting with the browser. Please try disabling protected mode and re-running the script.
Incorrect browser options: When creating a browser instance, you may need to set some options (such as enabling or disabling JavaScript). Please check if your options are correct.
Port is occupied: If you are running multiple Selenium instances at the same time, make sure they use different port numbers.
Missing necessary libraries: In some cases, Selenium may require additional libraries or packages. Please check your installation and make sure all necessary libraries are installed.