Error when opening PDF file by Acrobat Reader DC on StudioX 2020.10.4

Currently I just use Use Application/Browser activity to open PDF file by Acrobat Reader DC on StudioX 2020.10.4.
It can opened but show error message as below.
Could you help to suggest me, please? Please find the attached files for workflows file.
Something went wrong with the Application.
Activity Use Application: EquipmentAgreement.pdf - Adobe Acrobat Reader DC (32-bit) (N Application Card) failed:

Could not find the user-interface (UI) element for this action.

Possible solutions:
        •  Ensure application is opened and the UI element is visible on the screen at execution time
        •  Edit the Target of the UI activity and use Validation to debug the issue. 
        •  If needed, re-indicate the element as its properties might have changed
        •  Use "Check state" activity to check the application state before executing the action
        •  Increase the "Delay before" value to allow time to the application to render entirely and become responsive
 



You can find the activity following this path: 


Main > Use Application: EquipmentAgreement.pdf - Adobe Acrobat Reader DC (32-bit).


EquipmentUseAgreements.zip (71.1 KB)

Hello @akkapolk!

It seems that you have trouble getting an answer to your question in the first 24 hours.
Let us give you a few hints and helpful links.

First, make sure you browsed through our Forum FAQ Beginner’s Guide. It will teach you what should be included in your topic.

You can check out some of our resources directly, see below:

  1. Always search first. It is the best way to quickly find your answer. Check out the image icon for that.
    Clicking the options button will let you set more specific topic search filters, i.e. only the ones with a solution.

  2. Topic that contains most common solutions with example project files can be found here.

  3. Read our official documentation where you can find a lot of information and instructions about each of our products:

  4. Watch the videos on our official YouTube channel for more visual tutorials.

  5. Meet us and our users on our Community Slack and ask your question there.

Hopefully this will let you easily find the solution/information you need. Once you have it, we would be happy if you could share your findings here and mark it as a solution. This will help other users find it in the future.

Thank you for helping us build our UiPath Community!

Cheers from your friendly
Forum_Staff

check this guide first. also, what version of UI Automation are you using, we ve fixed an issue with acrobat reader in our last release.