Expression activity type 'CSharpValue`1' requires compilation inorder to run

Hi. I’m using UiPath studio 2021.10.3 community license. I created a new project with cross-platform compatibility and language as C#. I created a small sequence with first step as read workbook range activity, second step as write line activity.

I set breakpoint at write line activity. Now I’m debugging project. Bot stopped at breakpoint.

Now in the immediate panel, when I try to execute any commands, I’m getting following error:
“Expression activity type ‘CSharpValue`1’ requires compilation inorder to run. Please ensure that workflow has been compiled”

Can you please guide me how to resolve this error?