Dear all,<br><br>When I calculated the Raman of the structure which spacegroup is Fddd, I met a question of "warning: symmetry operation # 2 not compatible with FFT grid" and "warning: symmetry operation # 5 not allowed. fractional translation:<br>
-0.2500000 -0.2500000 -0.2500000 in crystal coordinates".<br> I have changed the value of ecutrho, and nr1,nr2,nr3, but all isn't work. Because I calculate the Raman, I think if I can't get the correct the symmetry operation , the result of raman will be not correct. So I want to know if there are some helpful suggestions. It appreciate you if you can help me. Thank you very much in advance.<br>
<br>Sincerely<br><br>-- <br>Yanchao Wang<br>National lab of Superhard Materials,JiLin Univ.Changchun 130012,P.R.China<br><a href="mailto:Email%3Awyanchao@gmail.com">Email:wyanchao@gmail.com</a><br>