<div dir="ltr"><div dir="ltr"><div>Dear All,<br><br></div><div></div>Recently, I have came across files and slides from MASTANI Summer School from 2014, in particular - the calculation of Raman spectrum of graphene nanoribbon. I would like to reproduce this example. Unfortunately, version 6.3 doesn't allow me to do that. <br><br>This is he error message:<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>     Error in routine phq_setup (1):<br>     third order derivatives not implemented with GGA<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br></div><div>May I ask you where can I find the version of qe which has this implementation?<br><br></div><div>Kind regards,<br></div><div>Karolina <br></div></div>