inclined curtine wall

[Wagurto]

HI guys I have a problem trying to create a include curtine wall. I created a mass object with my inclined wall and than use the curtine wall and selected the inclide face but Revit said that only regulas walls can be use in this shape.
Any clues of what am I doing wrong?
thanks

[cliff collins]

You need to be sure to use the "Curtain System by face" tool.

cheers

[Wagurto]

I guess its a bad time to ask question about old versions of revit.
Well if someone is willing to help it will be really appreciated.
thanks