Hi,
we are using UiPath Studio v2020.10.6 and UiPath.System.Activities v21.10.5.
InvokeCode activty in System.Activities package 21.10.x doesn’t support Studio 20.10.x. Please see “known issues” of the following document.
So, can you try to downgrade system.activities package to 20.10.x, OR upgrade Studio to 21.10 or above?
Regards,