Good Afternoon. I am facing problem while doing Difficult modelling for my protein. It is showing the following error.

I am attaching the .aln file, my .pdb and model.py file for your reference. Hope to get a reply from you soon.

Thanks & Regards.

C:\Program Files\Modeller9v8\examples\ranu_basic\C4H>mod9v8 model.py

'import site' failed; use -v for traceback

Traceback (most recent call last):

  File "model.py", line 9, in ?

    a.make()

  File "C:\Program Files\Modeller9v8\modlib\modeller\automodel\automodel.py", li

ne 98, in make

    self.homcsr(exit_stage)

  File "C:\Program Files\Modeller9v8\modlib\modeller\automodel\automodel.py", li

ne 424, in homcsr

    self.check_alignment(aln)

  File "C:\Program Files\Modeller9v8\modlib\modeller\automodel\automodel.py", li

ne 406, in check_alignment

    aln.check()

  File "C:\Program Files\Modeller9v8\modlib\modeller\alignment.py", line 200, in

 check

    self.check_structure_structure(io=io)

  File "C:\Program Files\Modeller9v8\modlib\modeller\alignment.py", line 209, in

 check_structure_structure

    return f(self.modpt, io.modpt, self.env.libs.modpt, eqvdst)

_modeller.ModellerError: check_a_282E> Unable to read structural information for

 alignment sequence:        1  2fdvA This command requires structures.