The elph coupling was calculate with the input fiel epw1.in.
the k--point and q-point were consistent with the scf.in and ph.in
After read phonon and write *.epb file. We got this erro.
Writing epmatq on .epb files
The .epb files have been correctly written
Band disentanglement is used: nbndsub = 11
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Error in routine wigner_seitzkq (1):
weights do not add up to nc1*nc2*nc3
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