Error: Parameter path cannont be null after downgrading UiPath.IntelligentOCR.Activities

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I am working on a project utilizing the Document Understanding framework. Recently, I upgraded the UiPath.IntelligentOCR.Activities package from version 6.24.0 to 6.26.0. After a few days of testing, I observed that during the classification step in Action Center, enabling the RemoveDataFromStorage flag still left behind the file customization_info.zip.

To address this, I attempted to downgrade the package back to version 6.24.0. However, after doing so, I encountered the following runtime error at the point it tries to classify the document using Classify Document Socpe that contains the Generative Classifier:

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Steps I have already tried:

  • Completely uninstalling UiPath.IntelligentOCR.Activities and reinstalling version 6.24.0.
  • Restoring a backup copy of the XAML file containing the Classify Document Scope - Gen Ai activity.
  • Regenerated the XAML file containing the Classify Document Scope - Gen Ai activity file from scratch

We are using Studio 2024.10.8

Any assistance would be appreciated.

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@knox.david

Can you show what all packages and versions you are using

There is a compatibility difference for latest..for info check here

Just to make sure ml packages should be inline and auto download so remove that as wel when you change versiosn to get compatible versio s

Cheers

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@Anil_G - Thank you for the quick response, you are correct. it was the ML package. I was using UiPath.DocumentUnderstanding.ML.Activities 1.35.0 and when I downgraded it to 1.33.0 it resolved the error.

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