<div dir="ltr"><div>Dear CP2K Users, <br></div><div> <br></div><div>I have been trying to do a cell optimization calculations using a symmetry restrain, MONOCLINIC_GAMMA_AB. <br></div><div>However when I included in </div><div>     <br></div><div>     &CELL<br>        ABC 42.680 42.680 16.660<br>        ALPHA_BETA_GAMMA 90 90 120<br>       PERIODIC  XYZ<br>       MULTIPLE_UNIT_CELL  1 1 1<br>       SYMMETRY MONOCLINIC_GAMMA_AB<br>     &END CELL<br></div><div><br></div><div>I get this error</div><div><br></div><div>invalid value for enumeration:MONOCLINIC_GAMMA_AB         *<br> *    |                                                                        *<br> *  O/|                                                                        *<br> * /| |                                                                        *<br> * / \                                     input/input_enumeration_types.F:226 *<br> *******************************************************************************<br><br><br> ===== Routine Calling Stack =====<br><br>            6 val_create_parsing<br>            5 section_vals_parse<br>            4 section_vals_parse<br>            3 section_vals_parse<br>            2 section_vals_parse<br>            1 read_input<br>Rank 0 [Tue Aug 28 09:37:22 2018] [c1-1c0s7n1] application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0<br><br>Program received signal SIGABRT: Process abort signal.<br><br>Backtrace for this error:<br><br>Program received signal SIGSEGV: Segmentation fault - invalid memory reference.<br><br>I was wondering if you could help me to figure it out why this isnt working?</div><div><br></div><div><br></div><div>best, <br></div><div><br></div><div>Andres Ortega Guerrero.</div><div>EPFL - LSMO<br></div></div>