invalid session id error using Selenium through PHPUnit

Question

I'm tring to use Selenium for PHPUnit. But for first attempt, something went wrong.

I have error "invalid session id" in PHPUnit, but Selenium logs says, that everything is fine. Full text of error:

{stacktrace=#0 0x55c2598402d3 <unknown>, error=invalid session id, message=invalid session id}

What I did.

1. Has installed php 7.3:

   apt install php7.3
   

2. Installed Java:

   apt install default-jdk 
   

3. Downloaded Chrome Driver ChromeDriver 81.0.4044.138

4. Downloaded Selenium server stanalone

Now I understood, that I dowloaded wrong version of Selenium Server.

• Wrong: selenium-server-standalone-3.1.0.jar
• Right: selenium-server-standalone-3.141.59.jar and higher.

Answer 1

You may be still facing the same invalid session id error as:

• You still seem to be using ChromeDriver 81.0.4044.138
• Presumably you are using the latest chrome=104.0

So there is a clear mismatch between chrome=104.0 and the chromedriver=81.0.4044.138

---

Solution

Ensure that:

• Selenium is upgraded to current released Version 4.4.0.
• ChromeDriver is updated to current ChromeDriver v104.0 level.
• Chrome Browser is updated to current chrome=104.0 (as per chromedriver=104.0 release notes).