Invoke Workflow File: Could not load file or assembly 'System.Activities.ViewModels, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified

[Palaniyappan (Palaniyappan P)]

Check this knowledge base from UiPath to get this resolved

Could Not Load File Or Assembly UiPath.interop

How to resolve the Error running the workflow "Could not load file or assembly UiPath.interop" ? Resolution: The workflow error “Could not load file or assembly UiPath.interop” can be approached as below - Approach #1: Open %userprofile% in your affected Robot system Navigate to “.nuget” / packages / folder [1.jpg] Delete the highlighted folder "uipath" in .nuget location. Reason: This would delete all the dependent files thus allowing to Robot to download the files again when the process…

Cheers @Althaf_nazeer_Nazeer