Get OCR text with Engine Omnipage OCR is not working

Help Studio
1

Hi,

I have upgraded studio from 2022.10.2 to 2024.10.1. After the upgrade, I’m seeing issues with Get OCR text not able to read the content using OMNiPage OCR engine. When I click on the hamburger symbol within Get OCR text and select ‘Indicate on Screen’ option, I get this error - ‘Remote communication error’ and if I click on the screen anyway then I get another error message ‘Cannot automate remote api: UipathRemoteRunTime.exe’ is not running in the remote session. We never used this UiPath Remote runtime tool before.

The image shows a software interface with a dropdown menu related to an OCR (Optical Character Recognition) function, offering options like "Indicate on screen," "Edit Selector," among others. (Captioned by AI)
The image shows a software interface with a dropdown menu related to an OCR (Optical Character Recognition) function, offering options like "Indicate on screen," "Edit Selector," among others. (Captioned by AI)488×177 16.6 KB

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Is there any change in using these OCR engines in version 2024.10.1? Any help on this is greatly appreciated.

2

Hey @suni.p
Yes, UiPath Remote Runtime component needs to be installed on remote machines to enable functionalities like screen element indication and the use of the OmniPage OCR engine.
Here you will find documentation:

Alternatively, you might consider using the CV Get Text activity, which leverages Computer Vision and doesn’t require additional components on the remote machine.

3

Thank you for your quick response @pikorpa. We don’t have an option to install UiPath Remote Runtime on vendor machine but I will see if I can get what I need by using CV Get Text.

4

@pikorpa I’m having issues using CV Screen Scope with UipathScreenOCR engine. Versions I’m using in the project are compatible with versions mentioned in the error. I also tried to update the ‘UiPath.IntelligentOCR.Activities’ version from 6.14.1 to latest version 6.14.3 but still seeing the same error.

Error message: UiPath Screen OCR - This version of the OCR.Activities package is incompatible with UiPath.IntelligentOCR.Activities older than v6.20.0, UiPath.PDF.Activities older than v3.20.0, UiPath.DocumentUnderstanding.ML.Activities older than v1.29.0, UiPath.OmniPage.Activities older than v1.20.0

Versions I’m using in my project:

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5

Hey @suni.p
According to documentation, Studio 2024.10.1 should support version 6.20+:

The image shows a table of UiPath activity package versions across different long-term support (LTS) releases, with UiPath.IntelligentOCR.Activities version 6.22.1 highlighted under the 2024.10 LTS column. (Captioned by AI)
The image shows a table of UiPath activity package versions across different long-term support (LTS) releases, with UiPath.IntelligentOCR.Activities version 6.22.1 highlighted under the 2024.10 LTS column. (Captioned by AI)942×650 59.5 KB

Can you please confirm:

  1. Is your project type Windows or Windows-Legacy?
  2. Are you definitely using Studio 2024.10.1?
  3. And are the official package sources available in your feed?

If it turns out to be a Windows-Legacy project, that would likely explain the package version limitation.

6

@pikorpa

  1. Project type is Windows
  2. Yes, I’m using 2024.10.1
  3. Yes, packages available in feed.
    I did go through the documentation before posting my last message. I also tried to replace the OCR engine within CV screen scope with Tesseract OCR engine but it is not reading the text that I want from the screen indicated as expected.
7

@suni.p
Unfortunately I don’t have version 2024.10.1 but I just tested this on my side using Studio 2024.10.8, and I can see the IntelligentOCR package version 6.24 available without any issues. That makes me think something might be cached or restricted in the current project setup.

Would you be able to try creating a new Windows project and see if the latest versions become available there? If it works, you could move your existing workflows into that new project.

8

What happens when you hit “continue anyway”? This message says that it cannot assess the selector on the (remote) screen. However, that’s the point where you should (and you do) use OCR.
Alternatively, you may work with screenshots and then OCR them.

9

Please try UiPath Screen OCR or Document OCR

10

@pikorpa I did create a new project and the latest version available for UiPath.IntelligentOCR.Activites is 6.14.3 and for UiPath.OCR.Activities is 3.21.2. When I use CV Screen Scope with UiPath Screen OCR, I get the same error - Error message: UiPath Screen OCR - This version of the OCR.Activities package is incompatible with UiPath.IntelligentOCR.Activities older than v6.20.0, UiPath.PDF.Activities older than v3.20.0, UiPath.DocumentUnderstanding.ML.Activities older than v1.29.0, UiPath.OmniPage.Activities older than v1.20.0

I did downgrade the versions for UiPath.OCR.Activities to 3.20.3 and UiPath.UiAutomation.Activities to 24.10.10 to 24.10.0. By downgrading these two packages, incompatibility error disappeared and I was able to capture the text from Citrix screen