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WARNING(SPMHDB-46): Illegal null pad. (VIA)

JFuoco

Hello, I'm running into a strange error that I can't quite figure out. I'm hoping for some assistance.  Here is the error (theres a bunch of different versions of the same error):

ERROR IN PAD STACK name = GND-BOTTOM
WARNING(SPMHDB-46): Illegal null pad.
Layer TOP

My board is a typical 4 layer board. The top and bottom are signal levels and the inner are power planes:

  1. TOP
  2. GND
  3. PWR
  4. BOTTOM

So I'm confused why for a GND-BOTTOM via, the top pad is even being checked. But even so, why it gives an error for a null pad there. Some items of reference...

Full error log: https://db.tt/5PGP8pkq

Photo of pad construction: 

If you have any ideas that would be great. I'm stuck here and really need to print my Gerber files for production. Thanks a lot.

  • oldmouldy
    Try setting the Thermal and Anti values to NULL, rather than Circle 0.0, any Geometry is going to be looking for a valid, non-zero, value in the padstack definition.
  • Soundman99
    We had something similar recently, it wasn't throwing errors, but had the warnings for the null pad. Found that there was a null pad, and I think the warning was just telling us that we had a through via without a pad on each layer. I'm not sure, but are the errors and warnings for the same thing, or are they actually reporting two different things? (i.e. is there something wrong with your Pad Stack name, and then th
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