Google OCR japanese doesn't work

Scenario:Read PDF with OCR

Steps to reproduce:Google OCR

Current Behavior:following error is occurred.

Main has thrown an exception

Source: Google OCR

Message: One or more errors occurred.

Exception Type: AggregateException

System.AggregateException: One or more errors occurred. —> System.Exception: Error scraping using host process. Service is not available. —> System.ServiceModel.CommunicationException: There was an error reading from the pipe: Unrecognized error 109 (0x6d). —> System.IO.PipeException: There was an error reading from the pipe: Unrecognized error 109 (0x6d).
at System.ServiceModel.Channels.PipeConnection.FinishSyncRead(Boolean traceExceptionsAsErrors)
at System.ServiceModel.Channels.PipeConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
— End of inner exception stack trace —

Server stack trace:
at System.ServiceModel.Channels.PipeConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.DelegatingConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.SessionConnectionReader.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.SynchronizedMessageSource.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.TransportDuplexSessionChannel.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.TransportDuplexSessionChannel.TryReceive(TimeSpan timeout, Message& message)
at System.ServiceModel.Dispatcher.DuplexChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object ins, Object outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at UiPath.Vision.Hosting.Service.IHostService.Scrape(OCRInput input, OCROptions options, OCROutput& output)
at UiPath.Vision.Hosting.HostServiceProxy.Scrape(OCRInput input, OCROptions options, OCROutput& output)
— End of inner exception stack trace —
at UiPath.Vision.Hosting.HostServiceProxy.Scrape(OCRInput input, OCROptions options, OCROutput& output)
at UiPath.Vision.VisionClient.<>c__DisplayClass12_0.b__0()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —

Server stack trace:
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at UiPath.Vision.VisionClient.ScrapeUsingHostService(OCRInput input, OCROptions options, CancellationToken cancelToken)
at UiPath.Vision.VisionClient.ScrapeImage(OCRInput input, OCROptions options, CancellationToken cancelToken, Boolean useHostProcess)
at UiPath.Vision.VisionClient.Scrape(OCRInput input, OCROptions options, CancellationToken cancelToken, Boolean useHostProcess)
at UiPath.Vision.UiImage.ScrapeOCR(OCROptions options, CancellationToken cancellationToken)
at UiPath.Core.Activities.OCREngineActivity.<>c__DisplayClass36_0.b__0()
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object args, Object server, Object& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed, MessageData& msgData)
at System.Func1.EndInvoke(IAsyncResult result) at UiPath.Core.Activities.OCREngineActivity.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)
—> (Inner Exception #0) System.Exception: Error scraping using host process. Service is not available. —> System.ServiceModel.CommunicationException: There was an error reading from the pipe: Unrecognized error 109 (0x6d). —> System.IO.PipeException: There was an error reading from the pipe: Unrecognized error 109 (0x6d).
at System.ServiceModel.Channels.PipeConnection.FinishSyncRead(Boolean traceExceptionsAsErrors)
at System.ServiceModel.Channels.PipeConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
— End of inner exception stack trace —

Server stack trace:
at System.ServiceModel.Channels.PipeConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.DelegatingConnection.Read(Byte buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.SessionConnectionReader.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.SynchronizedMessageSource.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.TransportDuplexSessionChannel.Receive(TimeSpan timeout)
at System.ServiceModel.Channels.TransportDuplexSessionChannel.TryReceive(TimeSpan timeout, Message& message)
at System.ServiceModel.Dispatcher.DuplexChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object ins, Object outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at UiPath.Vision.Hosting.Service.IHostService.Scrape(OCRInput input, OCROptions options, OCROutput& output)
at UiPath.Vision.Hosting.HostServiceProxy.Scrape(OCRInput input, OCROptions options, OCROutput& output)
— End of inner exception stack trace —
at UiPath.Vision.Hosting.HostServiceProxy.Scrape(OCRInput input, OCROptions options, OCROutput& output)
at UiPath.Vision.VisionClient.<>c__DisplayClass12_0.b__0()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()<—

Expected Behavior:OCR works.

Studio/Robot/Orchestrator Version:Studio 2017.1.6435

Last stable behavior:nothing
Last stable version:nothing
OS Version:Windows 8.1 Pro with Media Center x64
Others if Relevant: (workflow, logs, .net version, service pack, etc):3.04 or master of jpn.traineddata
https://github.com/tesseract-ocr/tessdata/blob/3.04.00/jpn.traineddata
https://github.com/tesseract-ocr/tessdata/blob/master/jpn.traineddata

try with this tesseract file https://github.com/tesseract-ocr/tessdata/tree/bf82613055ebc6e63d9e3b438a5c234bfd638c93

Hi Gabriel,

I tried and it works.:smiley:
I appreciate for your help.

Best Regards,
Soshi Miyata

1 Like

Hi,
I am getting a strange error. UiPath stops after reading 15-20 random files while working with Read pdf with OCR activity. After I re-run from where it has stopped it again works for next 15-20. I have 1000 files to pass through. I am not able to move forward. Any help at earliest would be highly appreciated. Below is the error

Main has thrown an exception

Source: Read PDF with OCR

Message: Value cannot be null.
Parameter name: property

Exception Type: ArgumentNullException

System.ArgumentNullException: Value cannot be null.
Parameter name: property
at System.Activities.ExecutionProperties.Add(String name, Object property, Boolean skipValidations, Boolean onlyVisibleToPublicChildren)
at UiPath.PDF.Activities.ReadOCRFileActivity.SchenduleProcessImage(NativeActivityContext context)
at UiPath.PDF.Activities.ReadOCRFileActivity.EndExecute(NativeActivityContext context, IAsyncResult result)
at UiPath.PDF.Activities.AsyncNativeActivity.BookmarkResumptionCallback(NativeActivityContext context, Bookmark bookmark, Object value)
at System.Activities.Runtime.BookmarkCallbackWrapper.Invoke(NativeActivityContext context, Bookmark bookmark, Object value)
at System.Activities.Runtime.BookmarkWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)

Thanks & Regards,
Aashish