Assembly Analysis: "Please define Elastic modulus in material properties" error even though all my parts are defined properly

I'm trying to do an assembly analysis.  All my parts have materials defined and all have all the properties filled in.

After I mesh and try to run, I get the error "Please define Elastic modulus in material properties".  It doesn't tell me what part.

I check every part and every material and they all have elastic modulus filled in.

Does anyone know why I'd get this message?

SolidworksSimulation