Hi @Mansoor Ali ,

Uninstall Service Studio completely and Reinstall Service Studio.

If the issue persists, reach out to OutSystems Support.

Thanks,

Vipin Yadav 

Hello,

It's in dark mode. I recommend going to the Control Panel, uninstalling it, and then reinstalling it.

Best regards.

I have tried uninstalling, clearing temp files, clearing registry, and installed again , same issue. No luck yet

Please see if installing an older version solves your issue ? say 11.54.86 ?

I faced a similar issue with Service Studio version 11.55.3 on Windows Server 2022. Downgrading to version 11.54.x resolved the problem in my case. btw I am not sure the exact cause.

No solution yet, even Installed new OS from scrach

Hi,

Have you installed the stable version? If you still encounter the same issue after installing it, please raise a support ticket.

Dear @Mansoor Ali ,

I think your .net framework is corrupted, try to repair it.

Unistall outsystems and try to repair the .net framework in your system, link provided below.

https://www.microsoft.com/en-us/download/details.aspx?id=30135

Before repair, try to clear all the OS appdata from the drive.

Let me know if this sloves the issue.

Thanks

Dear Mansoor,

I also faced this issue before, and here are some steps that might help you resolve it:

1. Restart Service Studio & Run as Administrator
2. Clear Cache – Delete the folder: %localappdata%\OutSystems\Service Studio\Cache
3. Update or Reinstall Service Studio
4. Check Logs – Located at %localappdata%\OutSystems\Service Studio\Logs for error details
5. Disable Extensions & VPN – Some extensions or network restrictions may interfere
6. Ensure System Meets Requirements – Verify your system meets OutSystems’ recommended specifications

Try these steps and let me know if the issue persists.

Best regards,
Mukesh kumar S