Dear users,

I am getting this error, when I am running modeller (sailing.py):

_modeller.ModellerError: fit2xyz_296E> Number of equivalent positions < 3: 0

 I am trying to make a multi-template model to reconstruct a loop region for a protein. I am using a experimental structure of the loop (it has only 7 aminoacids), and several whole structures from the PDB and derived from modeller. There is any way to force the alignement or to solve this problem?