Hey there @PatoUru - I can confirm, I am encountering the same issue on macOS - it looks to me like one or more dependency packages have been taken offline from anaconda.org, we will investigate.
Hey there @PatoUru & @cdiener - @ebolyen did some sleuthing and uncovered some package shuffling related to the r-base package - this appears to be the root cause of the issue. We rebuilt the environment files, and all seems to be back in order.
You will need to download new copies of the environment files in order to proceed.
Let us know if you run into any hiccups - thanks for the reports!
Hi @YPR - please make sure you remove the old yml env files, first. I just double-checked and all appears fine on this end, I wonder if you might've just gotten your files mixed up. Keep us posted!