Dear Modeller Users,

I trying simple modelling methodology to model required protein structure.
Till build_profile.py everything went well.

But when gave compare.py.....i am get an error as follows

Traceback (most recent call last):
  File "compare.py", line 11, in ?
    m = model(env, file=pdb, model_segment=('FIRST:'+chain, 'LAST:'+chain))
  File "C:\Program Files\Modeller9v7\modlib\modeller\model.py", line 72, in __in
it__
    self.read(**vars)
  File "C:\Program Files\Modeller9v7\modlib\modeller\model.py", line 117, in rea
d
    model_format, model_segment)
IOError: pdbnam_____E> Filename for PDB code not found: 3d3l
              Directories: .;atom_files
              Extensions : ;.atm;.pdb;.ent;.crd
              (Also tried prepending 'pdb', looking for .Z, .gz, .bz2, .7z,
              and trying PDB-style subdirectories - e.g. ab for pdb1abc.ent)

Do I need make any modifications in my compare.py file....I am attaching compare.py file which i used.
Please help me with this problem.

Thanking You,
Anogna