I'm trying to run the MolProbity programs (reduce, ramalyze, etc) in Phenix 1.16-3649, and I get the following warning:

"Could not import the compiled Python-sander interface. Make sure you have the Python development libraries installed and that you have sourced amber.sh or amber.csh"

I do not recall seeing that in earlier versions. Do I need to worry about it? If so, how do I fix it? Thanks. :)

Eric