[AMBER] Grumpy GROMBER over a ZeroDivisionError

From: Matthew Guberman-Pfeffer <matthew.guberman-pfeffer.uconn.edu>
Date: Fri, 20 Aug 2021 01:21:49 -0400

Dear Amber Community,

I’m trying to use the gromber utility in ParMed, but I am getting the below error message. Can you please help me troubleshoot and resolve this issue?
 
gromber ligand.top ligand.gro
Converting Gromacs topology peridinina.top to Amber. Using topology directory [/usr/local/gromacs/share/gromacs/top]. Getting coordinates (and box) from peridinin.pdb.
Unexpected failure:
ZeroDivisionError: float division by zero

Traceback is

  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/tools/parmed_cmd.py", line 161, in _normaldo
    action.execute()
  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/tools/actions.py", line 4357, in execute
    top = gromacs.GromacsTopologyFile(self.topfile,defines=self.defines)
  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/gromacs/gromacstop.py", line 251, in __init__
    self.read(fname, defines, parametrize)
  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/gromacs/gromacstop.py", line 337, in read
    self._parse_dihedrals(line, dihedral_types, proper_multiterm_dihedrals,
  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/gromacs/gromacstop.py", line 585, in _parse_dihedrals
    dih, diht = self._process_normal_dihedral(words, molecule.atoms, i,
  File "/opt/anaconda3/envs/AmberTools20/lib/python3.9/site-packages/parmed/gromacs/gromacstop.py", line 883, in _process_normal_dihedral
    scee=1/self.defaults.fudgeQQ,

Best,
Matthew
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Received on Thu Aug 19 2021 - 22:30:02 PDT
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