Using dg in occ

Hello,

I constructed the domain of my problem using occ. When I use the ds for the facets, I get an error. Is this still valid in occ
ds = dx(element_boundary = True, definedon=mesh.Materials(“Domain”))

ds1=ds(skeleton=True,definedon=mesh.Materials(“Domain”))

Thank you for your help

It works the same. Check if your boundaries and domains are named correctly
Best
Christopher