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<body class='hmmessage'><div dir='ltr'>My goal is to use epw.x but when I was trying to first complete the ph.x calculation I kept running into this error:<BR>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR> from tipo_sym : error # 1<BR> symmetry not recognized<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>
stopping ...<BR>I checked the forum concerning this error but as expected the misplaced parenthesis had been fixed in the 4.0.3 version (only using such an old version b/c epw.x requires it). After encountering this error while testing an epw.x example I tried a pwscf example02 that utilizes ph.x (from version 4.0.3; The example shows how to use pw.x and ph.x to calculate phonon frequencies at Gamma and X for Si and C in the diamond structure and for fcc-Ni.) and I received the same error. <BR>
Any help would be much appreciated!<BR>
Thank you,<BR>J. Wohlwend<BR>
<BR>
Universal Technology Corporation <BR> </div></body>
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