<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_1_1427873758348_8463">Hello Wien2k users,</div><div id="yui_3_16_0_1_1427873758348_8464"><br></div><div id="yui_3_16_0_1_1427873758348_8465" dir="ltr">I am trying to calculate thin film supercell but i ran into dstart problem. The problem: <br></div><div id="yui_3_16_0_1_1427873758348_8466" dir="ltr">Error in DSTART<br style="" class=""> 'ROTDEF' - no symmetry operation found.<br style="" class=""> 'ROTDEF' - for jatom, index 1 2 <br style="" class=""> 'ROTDEF' - atomposition of jatom 0.0000000 0.2500000 0.0731879 <br style="" class=""> 'ROTDEF' - atomposition of index 0.0000000 0.7500000 0.0104554 <br></div><div id="yui_3_16_0_1_1427873758348_8473" dir="ltr"><br></div><div id="yui_3_16_0_1_1427873758348_8484" dir="ltr">I am attaching structure file. In my opinion structure seems good and x symmetry showed no error but here it says no symmetry operation found. <br></div><div id="yui_3_16_0_1_1427873758348_8601" dir="ltr">I hope i will get positive answers <br></div><div id="yui_3_16_0_1_1427873758348_8366"><span></span></div><div id="yui_3_16_0_1_1427873758348_8367"> </div><div id="yui_3_16_0_1_1427873758348_8368" class="signature"><span id="yui_3_16_0_1_1427873758348_8369" style="font-size:medium;">Temuujin Bayaraa<br></span></div></div></body></html>