Dynamo/ Revit Clash Detection

Question

I'm new here, so I was trying out the Dynamo script for clash detection in Revit from -> (https://www.autodesk.com/autodesk-university/class/Construction-Dynamoite-Explode-Productivity-Dynamo-2016)

But there seems to be an issue where the 'Element.Create 3D Cropped view' node returns a Function and therefore is unable to pass into the 'element' port of 'Element.SetParameterByName' node. Same for the 'List.FilterByBoolMask' node which returns a list and unable to pass into the 'value' port.

Main Graph Warning: Element.SetParameterByName expects argument type(s) (Element, string, var), but was called with (Function, string, var[]).

Element.Create 3D Cropped view This is the 'Element.Create 3D Cropped view' node

I'm not sure what the issue is. What should I do to fix this? Thank you for you help!