Follow-up Comment #1, bug #8059 (project relax): The apparently trivial fix to this one is to insert: elif self.param_set == None: return 0 into num_instances in specific_fns/model_free.py This only exposes other errors. Namely model_selection() runs without any output to the terminal, and the resulting run contains no data. It seems there is a bigger issue here regarding how model selection deals with runs without any selected residues. Any ideas? _______________________________________________________ Reply to this item at: <http://gna.org/bugs/?8059> _______________________________________________ Message sent via/by Gna! http://gna.org/