Hi @klayoutmatthias

Thank you for adding Layout.error_layer(), as you suggested here.

I tried to access the shapes in that layer, using begin_shapes_rec, but it returns an error

> ly.error_layer()
1

> it = ly.top_cell().begin_shapes_rec(ly.error_layer())
RuntimeError: Invalid layer index in Cell.begin_shapes_rec

Is there another way of extracting shapes from both error_layer and guiding_shape_layer?

thank you
Lukas