fail to create opening

[Anonymous]

Hi there,

I am on the beginning stage of using Robot. Recently I create a Robot model. But I just failed to create an opening on edge 569. I do not know why. Is anyone can help me?

Many thanks 

Tina

[Rafal.Gaweda]

Opening inside opening?
Maybe you need to delete opening 38?

[Artur.Kosakowski]

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.