Unable to record, getting an error

[anandkumar.venkatara]

Hi Experts, need help

Getting an error when I try to record - Could not start a new session. Response code 500

Getting this for all 3 - chrome, edge, & firefox

And when I try to update the drivers, its actually hanging

Pls. suggest

Thanks

[arvind.choudhary]

@anandkumar.venkatara

Hi Experts, need help

Getting an error when I try to record - Could not start a new session. Response code 500

Getting this for all 3 - chrome, edge, & firefox

And when I try to update the drivers, its actually hanging

Pls. suggest

Thanks

The error clearly states:

“This version of Microsoft Edge WebDriver only supports Microsoft Edge version 144, Current browser version is 146.0.3856.59”

Your Edge browser (v146) is ahead of the WebDriver (v144) — same likely happening with Chrome and Firefox.

Why Driver Update is Hanging?

Katalon’s built-in driver updater tries to download from the internet and often hangs due to:

• Proxy/firewall restrictions (common in corporate networks)

• Katalon server timeout issues

• Antivirus blocking the download

---

Manually Update WebDrivers

1. Check your exact browser versions:

   • Edge: edge://settings/help

   • Chrome: chrome://settings/help

   • Firefox: Help → About Firefox

2. Download matching drivers manually:

   • Edge: https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/

   • Chrome: https://googlechromelabs.github.io/chrome-for-testing/

   • Firefox (GeckoDriver): https://github.com/mozilla/geckodriver/releases

3. Replace the drivers in Katalon’s folder:

   C:\Users\<YourUser>\katalon-studio\configuration\resources\drivers\

(Separate subfolders for chromedriver_win32, edgedriver, firefox)

[depapp]

hi @anandkumar.venkatara

this one is pretty straightforward, it’s a browser ↔ WebDriver version mismatch.

From the error:

Edge WebDriver supports v144 but your browser is v146

Same thing is likely happening for Chrome & Firefox too.

Why it fails to record?
Katalon can’t start a session if the driver version doesn’t match the browser → results in that 500 error.

Quick fix (works every time)

1. Check your browser versions:

   • Edge → edge://settings/help
   • Chrome → chrome://settings/help

2. Download matching drivers:

   • Edge: https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/
   • Chrome: https://googlechromelabs.github.io/chrome-for-testing/
   • Firefox: https://github.com/mozilla/geckodriver/releases

3. Replace in:

   C:\Users\<your-user>\.katalon\configuration\resources\drivers\
   

About the “Update driver” hanging

Very common in corporate setups, usually caused by:

• proxy / firewall
• antivirus blocking
• Katalon timeout

Manual update is more reliable

Optional (better long-term)

If this happens often:

• Lock browser version (disable auto-update), OR
• Use Katalon Runtime Engine with managed env

If you want, share your Chrome/Edge versions and I can point you to the exact driver build

[dineshh]

you can chat with AI models and try the suggested solution

[kazurayam]

@anandkumar.venkatara

And when I try to update the drivers, its actually hanging

Are you behind a firewall or a proxy of your organization? If so you need to configure your project to live with them.

[anandkumar.venkatara]

Hi

I don’t see the configuration folder inside .katalon folder

[anandkumar.venkatara]

Thanks Arvind

But I don’t see the configuration folder inside katalon-studio folder

[kazurayam]

@kazurayam

Are you behind a firewall or a proxy of your organization?

Please answer to this question. Yes or no? If yes, describe how your machine is connected to the Internet.

[anandkumar.venkatara]

Thanks everyone

I upgraded to 11.0 and not getting the error now

[Falak]

i was also getting this error, Updating chrome and edge driver solve it.