Hello,
I created a complex shape and tried extruding it parametrically but was unable to do it. I'm receiving an error saying "An error occurred creating Feature: "Solid of Extrusion #2"
But when I turn off the "Parametric" option in the menu, It can extrude the complex shape.
I am using Microstation CE Update 12
It does not appear that the shape is a complex shape, you can close the drawing using "create complex shape" then it should work fine.