Hi: I recently installed the Linux-64 version of phenix1.19.2-4158 and used the command line to run phenix.den_refine. The command was just Phenix.den_refine xxx_refine_25.pdb xxx_refine_25.mtz (xxx is just the name of the project, and is made up, but I did the same thing for two different projects) And then it ran for a while until it started the initial minimization before the den routine, ie coordinate minimization before annealing and then it crashed with the error message TypeError: %d format; a number is required, not Autotype I believe this is a python error, but is there something straight-forward that I can do about this so that den_refine can work? Thanks for your help Dr. Alex U. Singer