<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hello All,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I was trying to calculate band structure for wurtzite-ZnO (zinc oxide) with 72 atoms supercell using PBE norm-conserving pseudopoteial. Both scf and nscf calculations were finished without any error. But while running bands.x  I am getting following error:</div><div class="gmail_default"><div class="gmail_default"><font face="arial, helvetica, sans-serif"><br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">     Error in routine punch_band (31):</font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">      increase maxdeg</font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"><br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">     stopping ...</font></div></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I am using QE-5.4.0, first time I am getting this error, not sure what is happening. I have attached input files, please have a look.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks and Regards,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Manu</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">(Simon Fraser University, Canada)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div></div>