OCR Doesnt work in Local Server

Help Document Understanding
, , ,
1

Hi I need urgent assistance with this. We are encountering an error in document digitization with the following error code.

We are currently using a VDI compatible with AVX2. This code works in dev, but fails with the following error in the UAT environment.

Process was aborted due to: System.Exception: An unexpected error has occurred —> System.AggregateException: One or more errors occurred. —> UiPath.SmartData.Digitization.Tokenization.TokenizationException: Smoke Test Batch 1 Timecard_Rotated_.pdf —> System.Exception: Error performing OCR: External component has thrown an exception. UiPathOCRErrorRunningEngine —> UiPath.CoreIpc.RemoteException: External component has thrown an exception. UiPathOCRErrorRunningEngine —> UiPath.CoreIpc.RemoteException: External component has thrown an exception. — End of inner exception stack trace — at UiPath.CoreIpc.Response.CheckError() at UiPath.CoreIpc.ServiceClient1.<>c__DisplayClass21_11.<b__1>d.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.CoreIpc.Helpers.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at UiPath.CoreIpc.ServiceClient1.<>c__DisplayClass21_11.<Invoke>b__2(Exception ex) at UiPath.CoreIpc.Helpers.<Timeout>d__91.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.Vision.VisionClient.d__5.MoveNext() — End of inner exception stack trace — at UiPath.OCR.Activities.UiPathOCRBase.EndExecute(AsyncCodeActivityContext context, IAsyncResult result) at System.Activities.AsyncCodeActivity1.System.Activities.IAsyncCodeActivity.FinishExecution(AsyncCodeActivityContext context, IAsyncResult result) at System.Activities.AsyncCodeActivity.CompleteAsyncCodeActivityData.CompleteAsyncCodeActivityWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.IntelligentOCR.Digitization.ExtendedOcrEngineActivityWrapper.<>c__DisplayClass2_0.<<Execute>b__0>d.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Telemetry.Events.Digitize.DigitizationTelemetryEventExtensions.<InstrumentAsyncMethodInternal>d__41.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Telemetry.Events.Digitize.DigitizationTelemetryEventExtensions.d__21.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.IntelligentOCR.Digitization.ExtendedOcrEngineActivityWrapper.<Execute>d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Digitization.OCR.OcrTokenizer.<TokenizeAsync>d__9.MoveNext() --- End of inner exception stack trace --- at UiPath.SmartData.Digitization.OCR.OcrTokenizer.<TokenizeAsync>d__9.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Digitization.PDF.PdfTokenizer.<TokenizePageImage>d__13.MoveNext() --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at System.Threading.Tasks.Task1.get_Result() at UiPath.SmartData.Digitization.ContentTokenizer.<>c__DisplayClass8_0.<TokenizePage>b__0(Task1 t) at System.Threading.Tasks.ContinuationResultTaskFromResultTask2.InnerInvoke() at System.Threading.Tasks.Task.Execute() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Digitization.DocumentDigitizer.<>c__DisplayClass18_01.<g__AttachContinuation|0>d.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.SmartData.Digitization.DocumentDigitizer.d__16.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at UiPath.IntelligentOCR.Activities.Digitization.DigitizeDocument.d__44.MoveNext() — End of inner exception stack trace — at System.Activities.Statements.Throw.Execute(CodeActivityContext context) at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.ActivityInstance.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation) — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at UiPath.Executor.BaseRunner.EndExecute(IAsyncResult result) at UiPath.Executor.InProcessRunner.EndExecute(IAsyncResult result) at UiPath.Core.Activities.ExecutorInvokeActivity.EndExecute(AsyncCodeActivityContext context, IAsyncResult result) at System.Activities.AsyncCodeActivity.System.Activities.IAsyncCodeActivity.FinishExecution(AsyncCodeActivityContext context, IAsyncResult result) at System.Activities.AsyncCodeActivity.CompleteAsyncCodeActivityData.CompleteAsyncCodeActivityWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)

2

Hello @sharon.palawandram!

It seems that you have trouble getting an answer to your question in the first 24 hours.
Let us give you a few hints and helpful links.

First, make sure you browsed through our Forum FAQ Beginner’s Guide. It will teach you what should be included in your topic.

You can check out some of our resources directly, see below:

  1. Always search first. It is the best way to quickly find your answer. Check out the image icon for that.
    Clicking the options button will let you set more specific topic search filters, i.e. only the ones with a solution.

  2. Topic that contains most common solutions with example project files can be found here.

  3. Read our official documentation where you can find a lot of information and instructions about each of our products:

  4. Watch the videos on our official YouTube channel for more visual tutorials.

  5. Meet us and our users on our Community Slack and ask your question there.

Hopefully this will let you easily find the solution/information you need. Once you have it, we would be happy if you could share your findings here and mark it as a solution. This will help other users find it in the future.

Thank you for helping us build our UiPath Community!

Cheers from your friendly
Forum_Staff

3

Hello I have the same problem…
Have you fixed it?

5

It’s really hard to tell how to fix it. This is an unhandled exception on the UiPath side, and we don’t have access to the source code where this error occurred.
But check if it is already solved in newer versions of OCR packages.

6

I solved it on my side.

We worked in a virtual machine.
There you need to activate avx2.

We activated it in virtualbox but it was not working because hyper-v was enabled on the host machine.

After disabling hyper-v it was working correctly

You can check if avx2 is available in your machine with tools like hwinfo