[Pw_forum] non-analytic term for q=0 missing

[Alcantara Ortigoza, Marisol]

Dear all,

I'm trying to run matdyn.x for a certain q-grid and, although I get the
vectors and frequencies files (which look correctly) I get an error from
matdyn.f90 (version 2.1.5) : 'non-analytic term for q=0 missing!". I
found that it is related with a logical variable "has_zstar" but I
cannot even find its meaning so I don't understand why I'm getting this
error. I'll appreciate your comments or help.

Thank you.