I'm a student. As homework we've got to create a mandala (a japaneese pattern, google it if you want) and extrude it.
I'm keep failing to extrude with the following error...
I tried all the dots to see if something is not connected, but all seems to be fine.
the contour is selectable as well.
Any help would be much appriciated!
Im using education edition 2015-16.