ERROR WHILE USING ML EXTRACTOR FOR EXTRACTION

[Revanth_Eswar1 (Revanth Eswar)]

System.InvalidOperationException: The activity ‘Machine Learning Extractor’ with ID 153 threw or propagated an exception while being canceled. —> UiPath.Shared.Activities.TrackingException: Request CorrelationId: ded834a7-9540-4f39-9bc7-6c775e6279ad
Request PredictionId: oHvOx4JCradWcZepeH09F9TMujCEUwe8Oy2AzGzmteU=_02b774d1-db7b-4e72-865a-79e0be5ae3e0
The operation was canceled. —> System.OperationCanceledException: The operation was canceled. at System.Threading.CancellationToken.ThrowOperationCanceledException()
at Polly.Retry.AsyncRetryEngine.ImplementationAsync[TResult](Func3 action, Context context, CancellationToken cancellationToken, ExceptionPredicates shouldRetryExceptionPredicates, ResultPredicates1 shouldRetryResultPredicates, Func5 onRetryAsync, Int32 permittedRetryCount, IEnumerable1 sleepDurationsEnumerable, Func4 sleepDurationProvider, Boolean continueOnCapturedContext) at Polly.AsyncPolicy1.ExecuteAsync(Func3 action, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext) at Polly.Wrap.AsyncPolicyWrapEngine.ImplementationAsync[TResult](Func3 func, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext, IAsyncPolicy1 outerPolicy, IAsyncPolicy1 innerPolicy)
at Polly.AsyncPolicy1.ExecuteAsync(Func3 action, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext)
at UiPath.DocumentUnderstanding.ML.Services.MLRequester.PostWithPolicyAsync(Boolean withRetry, String url, String apiKey, Object payload, Object metadata, String correlationId, String predictionId, CancellationToken token, Nullable1 timeout) at UiPath.DocumentUnderstanding.ML.Services.MLClient.PerformRequest[TRequest](TRequest request, Boolean withRetry, Object metadata, Nullable1 timeout, String correlationId, String predictionId, CancellationToken ct)
at UiPath.DocumentUnderstanding.ML.Services.MLClient.PerformRequest[TRequest,TResponse](TRequest request, Boolean withRetry, Object metadata, Nullable1 timeout, String correlationId, String predictionId, CancellationToken ct, JsonConverter[] converters) at UiPath.DocumentUnderstanding.ML.Services.MLClient.Extract(String documentPath, Document dom, Object metadata, Boolean withRetry, ExtractorDocumentType extractorDocumentType, String correlationId, String predictionId, CancellationToken ct, Nullable1 timeout)
at UiPath.DocumentUnderstanding.ML.Activities.MachineLearningExtractor.ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
— End of inner exception stack trace —
at UiPath.DocumentUnderstanding.ML.Activities.MachineLearningExtractor.ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
at UiPath.Shared.Activities.AsyncTaskCodeActivityImplementation.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at UiPath.DocumentUnderstanding.ML.Activities.ExtractorAsyncTaskActivity.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)
— End of inner exception stack trace —
at System.Threading.CancellationToken.ThrowOperationCanceledException()
at Polly.Retry.AsyncRetryEngine.ImplementationAsync[TResult](Func3 action, Context context, CancellationToken cancellationToken, ExceptionPredicates shouldRetryExceptionPredicates, ResultPredicates1 shouldRetryResultPredicates, Func5 onRetryAsync, Int32 permittedRetryCount, IEnumerable1 sleepDurationsEnumerable, Func4 sleepDurationProvider, Boolean continueOnCapturedContext) at Polly.AsyncPolicy1.ExecuteAsync(Func3 action, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext) at Polly.Wrap.AsyncPolicyWrapEngine.ImplementationAsync[TResult](Func3 func, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext, IAsyncPolicy1 outerPolicy, IAsyncPolicy1 innerPolicy)
at Polly.AsyncPolicy1.ExecuteAsync(Func3 action, Context context, CancellationToken cancellationToken, Boolean continueOnCapturedContext)
at UiPath.DocumentUnderstanding.ML.Services.MLRequester.PostWithPolicyAsync(Boolean withRetry, String url, String apiKey, Object payload, Object metadata, String correlationId, String predictionId, CancellationToken token, Nullable1 timeout) at UiPath.DocumentUnderstanding.ML.Services.MLClient.PerformRequest[TRequest](TRequest request, Boolean withRetry, Object metadata, Nullable1 timeout, String correlationId, String predictionId, CancellationToken ct)
at UiPath.DocumentUnderstanding.ML.Services.MLClient.PerformRequest[TRequest,TResponse](TRequest request, Boolean withRetry, Object metadata, Nullable1 timeout, String correlationId, String predictionId, CancellationToken ct, JsonConverter[] converters) at UiPath.DocumentUnderstanding.ML.Services.MLClient.Extract(String documentPath, Document dom, Object metadata, Boolean withRetry, ExtractorDocumentType extractorDocumentType, String correlationId, String predictionId, CancellationToken ct, Nullable1 timeout)
at UiPath.DocumentUnderstanding.ML.Activities.MachineLearningExtractor.ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)

[muktadir]

hi @Revanth_Eswar1 ,

You could check the following forum post

Error with Machine Learning Extractor:

Apparently, this is a known bug. I was provided a work around that fixed the issue for now. Within the design settings in studio I had to disable, the “enforce analyzer before run” option.