I'm new to the Illustris dataset and I was trying out the sample scripts given in the documentation. Instead of working with Illustris-3, I am working with Illustris-1-Dark. When I get to loading the subhalos, I get this error:
Exception: Group catalog does not have requested field [SubhaloSFRinRad]!
What's that about?
This is just because SubhaloSFRinRad is a property of gas cells, while you are looking at a DM-only run (no gas, no star formation).