[gmx-users] grompp in make hole

[nanyu101]

Dear gmx-users,
  I have tried to make a hole in popc128a.pdb downloaded from Dr.Tieleman's web,but when I run grompp -f run.mdp -o insert.tpr -c popc128a.pdb -r popc128a.pdb -p popc.top
 

The system told me as follows.I have check the maillist,there are nothing about it.So would you please give me some advice?

initialising group options...
processing index file...
Fatal error: Atom 6656 in multiple T-Coupling groups (2 and 0)


Best wishes,
Xianhui Wu
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