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<p>Hello,</p>
<p><br>
</p>
<p>I am trying to run a ph.x calculation of my material but have run into an error, and cannot find any previous information in the forum. I have run my pw.x optimization and successfully calculate my frequencies, but cannot get the qstar outputs, with the
following error following the calculated frequencies: </p>
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</p>
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Error in routine write_dfile_star (1):</p>
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<br>
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this subroutine produces random garbage without symmetry!</p>
<br>
<p></p>
<p><br>
</p>
<p>My phonon input is quite standard, and have not encountered this error before for other similar calculations.</p>
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<p style="margin:0px; font-style:normal; font-weight:normal; font-size:12px; line-height:normal; font-family:Courier; color:rgb(2,35,186)">
&INPUTPH</p>
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prefix = 'amn'</p>
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outdir = './tmp'</p>
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tr2_ph = 1e-16</p>
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verbosity = 'medium'</p>
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fildyn='amn.dynG'<br>
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epsil = .true.</p>
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recover = .false.</p>
<p style="margin:0px; font-style:normal; font-weight:normal; font-size:12px; line-height:normal; font-family:Courier; color:rgb(2,35,186)">
drho_star%open = .true.</p>
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drho_star%ext = 'drho',</p>
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drho_star%dir = 'FILDRHO'</p>
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/</p>
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0.0 0 0</p>
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<p></p>
<p>Any guidance would be greatly appreciated!</p>
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</p>
<p>Best wishes,</p>
<p>Adam</p>
<p><br>
</p>
<p>------</p>
<p>UoEdinburgh</p>
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