Unable to open existing project after update | Community Edition

Help Studio
1

Hello All,

I’m currently using UiPath community edition and it got updated to 2026.0.198 STS on 29/07/2026. Post this update, I’m unable to open the existing project using UiPath Studio. I have couple of existing projects where one of them is opening fine but the other one is not getting opened.

I have attached the screenshot and entire logs for reference.

Please note that we have tried restarting, uninstall and re installing again. But none of them helped.

Requesting for your help.

Thank you.

image
image483×1052 96 KB

please find below the entire logs

Logs:

09:59:51.8367 => [WARN] [UiPath.Studio] [1] Studio version: 26.0.198-cloud.24232+Branch.release-s198.Sha.c67a6f8e0e60568e75d825bbc8273b6231179a2e.c67a6f8e0e60568e75d825bbc8273b6231179a2e
09:59:54.1986 => [WARN] [UiPath.Studio] [1] Session id: 94390aa1-af9c-4d43-9de4-e20900196042
09:59:57.6039 => [ERROR] [UiPath.Studio] [8] Error: No license exist for this installation Exception: UiPath.Licensing.Library.Extended.Exceptions.NotLicensedException: No license exist for this installation
at UiPath.Licensing.Library.Extended.Implementation.OnlineLoader.UpdateAsync(IDictionary2 userMetadata, ProxySettings proxySettings) at UiPath.Licensing.Library.Extended.Implementation.LicenseProvider.UiPath.Licensing.Library.Extended.ILicenseProvider.UpdateOnlineLicenseAsync(IDictionary2 userMetadata)
10:00:03.6728 => [WARN] [UiPath.Studio] [1] Office version: O365
10:00:03.6728 => [WARN] [UiPath.Studio] [1] Office build version: 16.0.20131.20112
10:00:09.9900 => [ERROR] [UiPath.Studio] [20] Cloud license: A task was canceled.
10:00:17.5407 => [ERROR] [UiPath.Studio] [34] System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter ‘index’)
at System.Collections.Generic.List1.Remove(T item) at UiPath.RestAPI.RestApi.RemoveDefaultParameters(String name) at UiPath.RestAPI.RestApi.<MakeRequestAsync>g__AddAuthHeader|30_0(IAccessTokenProvider tokenProvider, Boolean refresh, CancellationToken cancellationToken) at UiPath.RestAPI.RestApi.MakeRequestAsync(HTTPMethod action, String resource, IEnumerable1 parameters, CancellationToken cancellationToken)
at UiPath.RestAPI.RestApi.ExecuteRequestAsync(HTTPMethod action, IConnectionSettings settings, String resourcesPartialUrl, IEnumerable1 parameters, CancellationToken cancellationToken) at UiPath.Studio.Orchestrator.Folders.Services.RefreshFoldersJobExecutor.UpdateItemsAsync() at UiPath.Studio.Orchestrator.Folders.Services.RefreshFoldersJobExecutor.RunAsync(RefreshFoldersJob job) at UiPath.Studio.Orchestrator.Folders.Services.FoldersService.RefreshAsync(RefreshFoldersJob job), HResult -2146233086 10:00:17.9718 => [ERROR] [UiPath.Studio] [34] System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index') at System.Collections.Generic.List1.Remove(T item)
at UiPath.RestAPI.RestApi.RemoveDefaultParameters(String name)
at UiPath.RestAPI.RestApi.g__AddAuthHeader|30_0(IAccessTokenProvider tokenProvider, Boolean refresh, CancellationToken cancellationToken)
at UiPath.RestAPI.RestApi.MakeRequestAsync(HTTPMethod action, String resource, IEnumerable1 parameters, CancellationToken cancellationToken) at UiPath.RestAPI.RestApi.ExecuteRequestAsync(HTTPMethod action, IConnectionSettings settings, String resourcesPartialUrl, IEnumerable1 parameters, CancellationToken cancellationToken)
at UiPath.Studio.Orchestrator.Folders.Services.RefreshFoldersJobExecutor.UpdateItemsAsync()
at UiPath.Studio.Orchestrator.Folders.Services.RefreshFoldersJobExecutor.RunAsync(RefreshFoldersJob job)
at UiPath.Studio.Orchestrator.Folders.Services.FoldersService.RefreshAsync(RefreshFoldersJob job)
at UiPath.Studio.Orchestrator.Folders.Services.FoldersService.RefreshAsync(IOnlineServicesConnectionSettings connectionSettings, Nullable`1 folderId, CancellationToken cancellationToken)
at UiPath.Studio.OnlineServices.Services.CloudServicesRepository.RefreshAllAsync(IOnlineServicesConnectionSettings connectionSettings, CancellationToken cancellationToken)
at UiPath.Studio.OnlineServices.Services.CloudServicesRepository.RefreshAllAsync(CancellationToken cancellationToken), HResult -2146233086
10:00:32.9963 => [WARN] [UiPath.Studio] [13] A timeout occurred while enabling the community update. Please make sure that the update service is running.
10:00:35.9342 => [WARN] [UiPath.Studio] [9] A timeout occurred while configuring the update channel. Please make sure that the update service is running.
10:01:03.0203 => [WARN] [UiPath.Studio] [8] A timeout occurred while enabling the community update. Please make sure that the update service is running.

2

@shahidhaqeel.s

This has been reported by another user as well and being discussed over here

@Pavel_Dragan ++

3

Hi @shahidhaqeel.s,

It looks like there is an issue in the latest release. This kind of issue has already been reported by few others as well.

Cheers!

4

Hi @shahidhaqeel.s

looking at your log its not really about the project file itself, the crash starts at “No license exist for this installation” and then the ArgumentOutOfRangeException happens inside AddAuthHeader when Studio tries to refresh the folders list from Orchestrator. So Studio is failing to re authenticate after the update and that failure cascades into the folder refresh call and locks up the load

that also explains why one project opens fine and the other doesnt, my guess is the one that fails is linked to an Orchestrator folder (even just for source control or feed) and the other is a fully local project with no cloud dependency, so it never hits that broken call

as a workaround while the bug gets patched, you can roll back to the previous Studio version. Open UiPath Assistant, go to Preferences, Studio version, and pick the last one before 198 STS, that skips the broken auth flow entirely. Also worth turning off auto update for now so it doesnt pull 198 back down

if rolling back isnt an option, try opening studio fully offline (disconnect network before launch), sometimes that skips the failing license/folder refresh call and lets the project open, then you reconnect after

hope it helps, and worth watching that other thread ashok linked since UiPath usually patches these fast !!

5

Hi! We’ve pushed a fix, and some users have reported that the issue has been resolved. Does the issue still reproduce on your end?