<div dir="ltr">Dear Sir or Madam,<div>I am trying to run phonon calculations necessary for determining superconducting transition temperature. I am getting error "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div>     Error in routine phq_readin (1):<br>     reading xq<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br>     stopping ...<br><br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>     Error in routine phq_readin (1):<br>     reading xq<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br><div>"</div><div>What is the solution of this problem?</div><div>Regards,</div><div>Piotr Szkudlarek</div></div>