Hello everyone,

I downloaded the CLAYFF force field provided here. When I tried to use it for a material containing potassium, a simple Forcite "Energy" calculation ran into an error, stating:

Failed to obtain a non-bond equivalence for forcefield type K.

Interestingly, the error disappeared after I edited the force field and renamed the force field type to "Ka". Is it possible that the Forcite engine does not like atom types whose name consists of only a single character?

Cheers,

Michael