When I run the script, nmr_torsion.inp, i get this error in the .out  
file:

-------------------------- Torsion Topology  
----------------------------------
    WARNING: A single-group tree does not have an
             acceptable base.
             Please alter topology and re-run.
             This is usually due to isolated atoms.
             Delete them or fix them to proceed.

  %TORSION:TOPOLOGY-ERR: Fatal Topology Error
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  BOMLEV=    0 reached.  Program execution will be terminated.
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  Subroutine DIE called . Terminating


Whether I use the topology file protein.par or parallhdg.pro, I get  
the same error.  Do you know what it means and how I can fix it?

Thanks



Reply via email to