Cannot add a custom Via: (Type Unknown)

 Hi,

    I am now using the Cadence SPB 16.5.  Employing the Pad Designer, I have made up a through hole via, I want to use this via in my PCB design.  However, once I opened the constraint manager and add the built via, the constraint manager indicated that my pad(via) is an unknown type one:

    Fig 1. unknown.png : VIA Type = Unknown

   And the via is not availiable in my design.

   How can I solve this problem?

   Could you help me?

Naroah

Apr/01/2014