Hi @mostapha, I got an error message when I clicked the “Options” button in Rhino.Inside.Revit this morning. Disabling the Pollination revit plugin resolved the issue. @jakechevriersg confirmed that he also got the same error message. I have version 2.124.0 for Pollination and version 1.12.8449 for RiR.
Hi, @dongyeop - Great to see you on the Pollination discourse. 
I created a new topic here so we can keep track of it separately.
@ksobon, do you know why this might be happening even though we added an additional check?
@mingbo, can we update the dependencies not to have a conflict?
I reported this bug here as well: