[gmx-users] x2top_error

[Atila Petrosian]

 Hi gromacs users,

I used following command for CNT.

gmx_mpi x2top –f cnt.gro –o cnt.top –ff cnt –name CNT –pbc -noparam


I encountered with:

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Can not find forcefield for atom CA-968 with 5 bonds

Can not find forcefield for atom CA-970 with 5 bonds

Can not find forcefield for atom CA-971 with 1 bonds

Can not find forcefield for atom CA-972 with 5 bonds

Can not find forcefield for atom CA-974 with 5 bonds

Can not find forcefield for atom CA-975 with 1 bonds

Can not find forcefield for atom CA-976 with 5 bonds

Can not find forcefield for atom CA-978 with 5 bonds

Can not find forcefield for atom CA-979 with 1 bonds

Can not find forcefield for atom CA-980 with 5 bonds

Can not find forcefield for atom CA-982 with 5 bonds

Can not find forcefield for atom CA-983 with 1 bonds

Can not find forcefield for atom CA-984 with 5 bonds

Can not find forcefield for atom CA-986 with 5 bonds

Can not find forcefield for atom CA-987 with 1 bonds

Can not find forcefield for atom CA-988 with 5 bonds

Can not find forcefield for atom CA-990 with 5 bonds

Can not find forcefield for atom CA-991 with 1 bonds

Can not find forcefield for atom CA-992 with 5 bonds

Can not find forcefield for atom CA-994 with 5 bonds

Can not find forcefield for atom CA-995 with 1 bonds

Can not find forcefield for atom CA-996 with 5 bonds

Can not find forcefield for atom CA-998 with 5 bonds

Can not find forcefield for atom CA-999 with 1 bonds

Can not find forcefield for atom CA-1000 with 5 bonds

Can not find forcefield for atom CA-1002 with 5 bonds

Can not find forcefield for atom CA-1003 with 1 bonds

Can not find forcefield for atom CA-1004 with 5 bonds

Can not find forcefield for atom CA-1006 with 5 bonds

Can not find forcefield for atom CA-1007 with 1 bonds

Can not find forcefield for atom CA-1008 with 5 bonds



I have a directory (cnt.ff) in current directory and the content of n2t
file is as follows:

C    CA    0.00    12.011  3    C 0.141   C 0.141   C 0.141
C    CA    0.00    12.011  2    C 0.141   C 0.141

How to resolve this error?