Did you fix this?
I have the exact same error!
I just updated from UiPath Studio v220.127.116.11 to v18.104.22.168, opened a year old project, and updated the dependencies. When double clicking the errors, it directs me to the errored activities, in two different workflows.
The weird thing is, I have a Terminal Session activity in another workflow (in the same project), that doesn’t give an error… with exacly the same setup, input, and output variables.
I have no idea what to do here… The UiPath.Terminal.Activities package is updated from v1.1.6464.20815 to version v1.3.3.