Get room location of element

I am following this tutorial to add the room location for each furniture element on my schedule

I’m running into an error on the last node:

The only deviation from the tutorial is that I created a “room” parameter for furniture and that is the field I am trying to update on the schedule. In the tutorial the existing “mark” parameter is used to write the room location but I need to maintain the mark parameter as is.

Thanks for any help.

Although the Elements in Room node from Archilab seems not to be working either

Had to update DynamoIronPython2.7 to v3.2.0.