[Pw_forum] q2r.x error

[yelena]

Again, with the same question. With the same error, on different input. 
Finished el-ph calculation. Trying to do q2r.x and get same error I'm 
getting for a while  Please can anyone help me. What does this error 
means?

    Preparing gamma for a2F


  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      Error in routine init (1):
       nc already filled: wrong q grid or wrong nr
  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

      stopping ...

Can anyone explain to me, please.

Regards,
Jelena