Intermittent error - open file timed out when invoking workflow during robot run

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1

We started encountering an intermittent error on our robots that is happening while invoking a workflow. I can’t find much information about the error but it seems like a timeout occurs when opening a local project file. The system exception reads “System exception at initialization: OpenFile timed out. at Source: UiPath.CoreIpc”. It will happen at different parts of the code, usually during initialization and more rarely during processing a transaction. When the logs are more detailed, I can see that it failed on a certain xaml file which is stored on the local machine.

I know this isn’t a lot to go on but hoping someone has experience with this and can offer insight. UiPath told us to update our dependencies which we did and still facing the same issue. We started seeing this error close to the time we upgraded Orchestrator from a 20.10.xx version. I don’t have the exact number right now and not sure if relevant…

When does error occur: unattended robot jobs
Robot and Studio version: robot 22.10.13, studio 22.10.13 with system.activities 22.10.18 and Windows legacy (old robot 20.10.14, studio 20.10.14 with system.activities 21.4.0)
How often does the error occur: intermittent, can happen in batches or one off then not happen for days
Orchestrator version: 22.10.7

Windows event viewer error message:
UiPath.Service.Host 22.10.13.0
UiPathRobotServices 39889609 IExecutorContract OpenFile 52. # System.TimeoutException: OpenFile timed out.
—> System.Threading.Tasks.TaskCanceledException: A task was canceled.
at UiPath.CoreIpc.Connection.Send(Response response, CancellationToken cancellationToken)
at UiPath.CoreIpc.Server.<>c__DisplayClass7_2.<<-ctor>b__5>d.MoveNext()
— End of stack trace from previous location —
at UiPath.CoreIpc.Helpers.Timeout[TResult](TimeSpan timeout, List1 cancellationTokens, Func2 func, String message, Func`2 exceptionHandler)
— End of inner exception stack trace —

2

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3

Have you find any solution?

4

No, the problem stopped happening on its own. Sorry, I wish I had a better answer for you.