[Pw_forum] error

[sefa at fen.bilkent.edu.tr]

Dear Sir/Madam,

I am a new user of PWSCF program. First of all, I am checking program to learn. I prepared inoput datas from PWGUI interface. After that when I run the program, it gives this error message:

     Program PWSCF     v.2.1    starts ...
     Today is 14Dec2004 at 14:33: 7 

     Ultrasoft (Vanderbilt) Pseudopotentials

     Current dimensions of program pwscf are:
     ntypx =10   npk =40000  lmax = 3
     nchix = 6  ndmx = 2000  nbrx =14 nqfx = 8

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     from  read_namelists  : error #       239
      reading namelist control 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

     stopping ...


I could not find  what kind of problem is this?  This is input problem but  how can I learn  meaning of  error numbers?

Thank You