Скачать или смотреть Resolving SessionNotCreatedException in Selenium

Learn how to troubleshoot and fix the `SessionNotCreatedException` error in Selenium when launching Chrome. Discover essential tips and code snippets for seamless browser automation with Selenium and Maven.
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This video is based on the question https://stackoverflow.com/q/76242954/ asked by the user 'hitman45' ( https://stackoverflow.com/u/21892936/ ) and on the answer https://stackoverflow.com/a/76244672/ provided by the user 'Abhay Chaudhary' ( https://stackoverflow.com/u/7736228/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving SessionNotCreatedException in Selenium: A Step-by-Step Guide

If you are working with Selenium to automate your tests using Chrome, you might encounter the frustrating SessionNotCreatedException error. This can halt your testing workflow and leave you scratching your head. In this guide, we will dive into understanding this error and, more importantly, how to fix it so that you can get back to automating your browser seamlessly. Let's get started!

Understanding the Problem

The error message you might see is something like this:

[[See Video to Reveal this Text or Code Snippet]]

This error message indicates a mismatch between your ChromeDriver and the version of Chrome you are using. Essentially, the version of the ChromeDriver does not support the version of Chrome installed on your machine. Here’s a breakdown of the main points to consider:

ChromeDriver Compatibility: Each version of ChromeDriver is built to work with specific versions of Chrome. Using mismatched versions can lead to this session not being created.

Initialization Code: Sometimes, even with the correct dependencies, not initializing the WebDriver correctly can lead to the same error.

The Solution: Using WebDriverManager

Setting Up WebDriverManager

WebDriverManager is a useful tool that manages your browser drivers and ensures you always have the correct version. Here’s how to implement it in your Selenium project.

Add Dependency in Maven: Ensure you have the WebDriverManager dependency in your pom.xml file, as follows:

[[See Video to Reveal this Text or Code Snippet]]

Initialize WebDriver: Modify your code to include the WebDriverManager setup before you create an instance of ChromeDriver. Here is the complete code snippet you should use:

[[See Video to Reveal this Text or Code Snippet]]

Why This Works

Automatic Driver Management: By calling WebDriverManager.chromedriver().setup();, WebDriverManager automatically downloads the correct version of ChromeDriver that matches your installed Chrome version. This eliminates the manual effort of keeping drivers updated.

Seamless Integration: The setup line internally executes the necessary System.setProperty to inform Selenium of the driver’s location, ensuring everything is configured for a smooth user experience.

Conclusion

By following the steps outlined above, you can effectively resolve the SessionNotCreatedException issue you encountered. Utilizing WebDriverManager not only simplifies the management of browser drivers but also ensures compatibility, saving you time and potential headaches. With this setup, you can continue with your tests without interruptions.

If you have any further questions or run into issues, feel free to leave a comment below, and happy testing!