Error in Initialization

[Vanesa_Garcia_R (Vanesa García Romero)]

Hello,

When I run my project I get a error on Initialization from Rframework. Somebody know this error?. Thanks

Read range (Settings and Constants sheets): Method not found: ‘Void ClosedXML.Excel.XLWorkbook..ctor(ClosedXML.Excel.XLEventTracking)’.

[Yoichi]

HI,

Can you share what activities package and its version you installed in your project?
There may be mismatch of some libraries.
Or, for now, can you try to upgrade your excel package to the last stable version?

Regards,

[Parvathy (PS Parvathy)]

Hi @Vanesa_Garcia_R

Check the below thread

Unable to Read Excel

Thanks for the reply @Divyashreem, I solved the issue. Apparently orchestrator tends to download and use the activity packages as mentioned in the project.jason . If the version is less than the one already downloaded and kept in orchestrator activity directory it won’t download the new package. The new package in orchestrator directory wasn’t compatible with the older version mentioned in the project.jason . I rollbacked my version of activity to last successful ran version and copy pasted th…

Hope it helps!!

[prashant1603765 (Prashant Kumar)]

Hi @Vanesa_Garcia_R

Try to update below both packages,

• UiPath.Excel.Activities
• UiPath.System.Activities

Happy Automation

[Vanesa_Garcia_R (Vanesa García Romero)]

Hi Yoichi,

About Studio version and my latop:

Studio 2025.0.167-cloud.20197 - 5/27/2025
Community License
Per-user Installation
License Provider: Orchestrator
Activation ID:
Microsoft Windows 11 Home 64-bit
8.0.15

I use the path of Config on Orchestrator Asset.

The project was working yesterday. Suddenly, last night I got the error, after adding a couple of new sequences.

Thanks

[Yoichi]

Hi,

Can you share screenshot of project panel (especially dependencies)? Combination of specific version of some activities packages may cause this issue.

Regards,

[Vanesa_Garcia_R (Vanesa García Romero)]

Thank you so much. I Update all packages and work for me