Hi, When do modeling, I got the following error message: assgn___544E> Variable name not recognized: MODEL_TOPOLOGY Command line: SET MODEL_TOPOLOGY = 1, HYDROGEN_IO = ON, HETATM_IO =ON, WATER_IO = ON assgn___525E> Error in TOP variable assignment. assgn___544E> Variable name not recognized: TOPOLOGY_LIBRARY Command line: SET TOPOLOGY_LIBRARY = $(LIB)/TOP.LIB assgn___525E> Error in TOP variable assignment. assgn___544E> Variable name not recognized: PARAMETERS_LIBRARY Command line: SET PARAMETERS_LIBRARY = $(LIB)/PAR.LIB assgn___525E> Error in TOP variable assignment. compile_563E> Please correct the errors reported above and rerun MODELLER. recover____E> ERROR_STATUS >= STOP_ON_ERROR: 1 1

But I follow FAQ 15, why MODERLLER6v2 cannot recognize these Variables? Is it possible that my installation has problems? Thank you very much! Kong Lesheng

My model.top: INCLUDE SET OUTPUT_CONTROL = 1 1 1 1 1 SET ALNFILE = '1TCH-1TCG.ali' SET KNOWNS = '1TCH' SET SEQUENCE = '1TCG' SET ATOM_FILES_DIRECTORY = './:../atom_files' SET STARTING_MODEL = 1 SET ENDING_MODEL = 5 SET MODEL_TOPOLOGY = 1, HYDROGEN_IO = ON, HETATM_IO=ON, WATER_IO = ON SET TOPOLOGY_LIBRARY = $(LIB)/top.lib SET PARAMETERS_LIBRARY = $(LIB)/par.lib CALL ROUTINE = 'model'