Error after package reupload: Cannot set unknown member 'UiPath.Core.Activities.ForEachRow.ColumnNames'

Hey all,

I am getting an error after I have performed the following steps:

  • I downloaded version 1.0.X of a package published in my Orchestrator as a nupkg file. This version of the package is currently running just fine on Orchestrator.
  • I then unzipped the nupkg file and opened the content of the package (located in: lib\net45) in Studio and published it back to Orchestrator with a new version. I did not make any changes to the Code and did not update any of the dependencies of the package. The code is executed just fine when run from Studio.
  • After updating the process on Orchestrator, I get the following message when running the process from Orchestrator on the same machine as before:
    Cannot set unknown member ‘UiPath.Core.Activities.ForEachRow.ColumnNames’

I have read through all of the related topics in this forum but none seem to have a solution to this problem. Thanks in advance for your responses.

Kind regards

Hello @Felix_Rech1!

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