[Pw_forum] unknown mode symmetry in phonon calculation

[Paolo Giannozzi]

Code versions?

On Sun, Aug 16, 2015 at 12:24 PM, Khalid Ibne Masood Khalid <
kimu206 at gmail.com> wrote:

> Dear Researchers,
> I am trying to calculate phonon dispersion of my material, but when I run
> ph.x, it gives the following error:
>
> Error in routine find_mode_sym (1):
>      unknown mode symmetry
>
> The crystal was fully relaxed and there was no problem in the system.
>
> Would you please suggest me what can I do regarding this problem.
>
> Thank you.
> Khalid
> M. Sc student
> BUET
>
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-- 
Paolo Giannozzi, Dept. Chemistry&Physics&Environment,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
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