[Pw_forum] error reading fildvscf

[Antonio Sanna]

I'm trying to calculate electron-phonon coupling, but after saved the
dynamical matrix and the first order variation of the potentials (no
errors received), when I lanch the electron-phonon calculation (elph =
.true.) in some cases I obtain this error message: 

1525-001 The READ statement on the file -------- cannot be completed
because the end of the file was reached.  The program will stop.

(where ------- is the name and address of the fildvscf.)

I finded this problem on many q points (mainly with low symmetry) and
different materias. 

Someone knows what I'm doing wrong?

 Thanks Antonio