Dear all , <br>                    I am calculating the SO calculation of a double perovskite compound using wien2k package. I have done the all the steps according to userguide. I had made case.klist_band from xcrysden. I have run <br>
                                    
x lapw1 -up -band<br>                                    x lapw1 -dn -band<br>                                   
x lapwso -up -band<br> After last run I am getting the following error <br><br>   {  ERROR IN OPENING UNIT:           9<br>           FILENAME: <br> ./LCMO.vectordn                                                                <br>
    STATUS: old          FORM:unformatted<br>OPEN FAILED<br>0.001u 0.000s 0:00.08 0.0%      0+0k 0+0io 14pf+0w}<br><br>I donot understand what is the difficulty in running if all inputs are correct. Could u please give me any suggestion to overcome the difficulty. Thanks.<br>
                                                                                                                            Santu Baidya<br>                                                                                                                              SNBNCBS,JRF<br>
                                                                                                                              KOLKATA<br>