Hi, when i try to extresist, i get this issues and no resistance are extracted in .spice, any idea?

I don't know if this is the issue, but make sure you only run

extresist

on a flattened design, because the extraction method does not properly understand hierarchy.

How could i do that?

From the design you want to extract, do something like

flatten cellname_flat ; load cellname_flat

and then complete the extraction steps with the new cell

cellname_flat

.