Read PDF With OCR Error while performing OCR

Hi , I am a beginner to UiPath.
I have add the manage package of pdf.UiPath.Activities and ocr activies.
Added a new activity with read pdf with OCR and added the engine for the pdf Tesseract OCR and created a variable for that activity.
added a variable to the message box.
But I am getting this error…

Source: Read PDF With OCR

Message: Error performing OCR: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified.

Exception Type: System.Exception

System.Exception: Error performing OCR: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified. —> UiPath.CoreIpc.RemoteException: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified. at UiPath.Vision.Core.Shared.Engines.VisionImage.FromByteArray(Byte imageData)
at UiPath.Vision.OCR.Engine.BaseEngine.d__20.MoveNext()

Source: Read PDF With OCR

Message: Error performing OCR: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified.

Exception Type: System.Exception

System.Exception: Error performing OCR: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified. —> UiPath.CoreIpc.RemoteException: Could not load file or assembly ‘Emgu.CV.Platform.NetStandard, Version=4.5.3.4721, Culture=neutral, PublicKeyToken=7281126722ab4438’ or one of its dependencies. The system cannot find the file specified. at UiPath.Vision.Core.Shared.Engines.VisionImage.FromByteArray(Byte imageData)
at UiPath.Vision.OCR.Engine.BaseEngine.d__20.MoveNext()

Hi @yamuna.kuripuri What version of the PDF activities package are you using? Have you attempted to upgrade or downgrade the package version to see if that resolves the issue?

Also, please make sure to align the pdf.activities package and intelligentocr.activities package version inline with the below recommended versions.

Please ensure to back-up your existing code before attempting to upgrade\downgrade activity package version.

Hie @yamuna.kuripuri so the pdf you are using is scanned pdf if yes then try to use tesseract might be the use engine having some gltich and if the pdf is document type then use read pdf with text and the use message box … and if the error is same share the dummy pdf and the Error Screenshot …
Cheers Happy Automation…