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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">Dear QE users,<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">I am doing d3q calculations. I am not using ultrasoft pseudopotentials. But, there is always an error:<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">from d3_readin : error # 1 </span></p>
<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">US not implemented<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">Could you help to fix this error?<br>
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<span style="font-family: Calibri,Arial,Helvetica,sans-serif;">I have tried with <span style="font-family: Calibri,Arial,Helvetica,sans-serif;">
pseudopotentials</span> of pbe and pz to run phonon calculation, which are not <span style="font-family: Calibri,Arial,Helvetica,sans-serif;">
ultrasoft</span>. But I still get this error.<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">In my calculation, when I use nonconversing
<span style="font-family: Calibri,Arial,Helvetica,sans-serif;">pseudopotentials</span>, there is error of "S matrix not positive definite". So, maybe
<span style="font-family: Calibri,Arial,Helvetica,sans-serif;">nonconversing <span style="font-family: Calibri,Arial,Helvetica,sans-serif;">
pseudopotentials</span></span> cannot be used in this calculation.<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">Thank you very much.<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">Kind regards,<br>
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<p><span style="font-family: Calibri,Arial,Helvetica,sans-serif;">Min Hong <br>
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