<div dir="ltr">Dear Anjali,<br>I had also suffered from same error. I was using the following ultrasoft pesudopotentials (PPs):<br>ba_pbe_v1.uspp.F.UPF (for Ba) and f_pbe_v1.4.uspp.F.UPF (for F).<br>But I have just managed to sort out the problem after simply replacing them with:<br>Ba.pz-hgh.UPF (for Ba) and F.pz-hgh.UPF (for F)<br>By the way I simply modified and used the EXX script provided in the EXX-example package of QE v.5.2.0.<br>As I have little experience with the technicalities, I have no idea why the problem was ruled out simply by exchanging different types of PPs.<br>Regards,<br>Mohammed Khalafalla<br>Assistant Prof<br>Taybah University<br>Physics department (Yanbu Branch)<br>Saudi Arabia, Yanbu<br><br><pre>><i> On Monday, November 30, 2015 04:54:38 PM Anjali Singh wrote:
</i>><i> > Hello Everyone,
</i>><i> >
</i>><i> > I am trying to do projrcted density of states (PDoS) calculation on the
</i>><i> top
</i>><i> > of HSE calculation which is giving me following error:
</i>><i> >
</i>><i> > *Error in routine exx_n_plane_waves (1): **you must initialize the grid
</i>><i> > first*
</i>><i> >
</i>><i> > Can somebody help me in fixing this error?
</i>><i> >
</i>><i> > Regards,
</i>><i> > Anjali Singh
</i>><i> > PhD student
</i>><i> > Material Theory Group
</i>><i> > Theoretical Science Unit
</i>><i> > Jawaharlal Nehru Centre for Advanced Scientific Research
</i>><i> > Jakkur,Bangalore 560 064
</i>><i> > India</i></pre><br></div>