photobiologygg is NOT compatible with the just released new version of package
ggplot2. I knew this was coming but I will still need some days before getting my own package updated. I had used unexported functions, and of course this was dangerous. The good news is that the improvements in
ggplot will allow me to implement the same functionality without need for the “illegal tricks” I had earlier used.
Sorry about my delay with this! If you use
photobiologygg please, wait a few days before updating