Hi

I am Trying to mirror a selected component in my Assembly, using as reference the Top Plane.

To get a better idea of the code/structure I should use, I tested the SW example "Mirror Components Example (VBA)"

found here: 2015 SOLIDWORKS API Help - Mirror Components Example (VBA)

But I get the following error:

"User-Defined Type Not Defined"

I assume its a library im missing (That I have not previously selected), can you, please,  tell me which one?

Or if it is something else.