Error - studio closed the active project due to critical internal error

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1

Hello,

i ma opening project which i have devloped on 2025.10.0 lts studio on my production server uipat studio 2024.10,9.

but getting below error repetatively.

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pleaese give us solution to resolve this below are the event viewer logs -

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can you please give me UiPath 2025.10.0 lts msi file to dwonlaod for enterprise verios so i cantry to install same version and i wil cehck.

help me to resolve tis as early as possible.
@ashokkarale

2

@Mathkar_kunal

Here is the link to download 25.10 studio version
https://download.uipath.com/versions/25.10.0/UiPathStudio.msi

Have you tried rebooting you machine?

3

yes tried multiple times even reinstall current version as well . but same issue

4

After uninstallation, please check if any residue of below present then delete everything permenantly, the reboot and try to install again:
C:\Users<your_user>\AppData\Local\UiPath
C:\Users<your_user>\AppData\Roaming\UiPath
C:\ProgramData\UiPath

Also, please check windows event viewer to see the exact error where or what component causing the failure

5

@Mathkar_kunal

Have you tried deleting the project.json and open the Main.xaml and let the studio rebuild it as per the requirement?

6

Hi @Mathkar_kunal,

This issue is most likely due to a version compatibility mismatch, not an installation problem.

Your project was developed in UiPath Studio 2025.10, but you’re trying to open it in Studio 2024.10. UiPath does not support forward compatibility, which means projects created in a newer version may fail (or even crash Studio) when opened in an older version.

The error you’re seeing (APPCRASH, UiPath.Studio.Project.exe, StackHash) is consistent with this scenario—Studio is unable to interpret the newer project structure or dependencies.

  • Install UiPath Studio 2025.10.x (same or higher minor version if possible).
  • Cleanup of AppData folders is useful only if the issue persists after matching the Studio version .
  • Open the project in that version first.

  1. Install Studio 25.10.x.

  2. Open the project.

  3. If the issue still occurs:

    • Check %LocalAppData%\UiPath, %AppData%\UiPath, C:\ProgramData\UiPath
    • Verify activity packages and feeds
    • Try opening from a clean clone/backup

Once confirmed working in 2025.10, you can decide if you want to maintain that version across environments.

Hope this helps.

Thanks,
Karthik