[gmx-users] grompp error with gromacs-3.3

[Lei Zhou]

Hi,

I am trying to use grompp in the recently released 3.3 to treat a system of
protein and ligand. However, with the same itp files used in 3.2.1, there is
error message saying that

ERROR 2 [file "ligand.itp", line 185]:
   Too many parameters
ERROR 3 [file "ligand.itp", line 186]:
   Too many parameters
ERROR 4 [file "ligand.itp", line 187]:
   Too many parameters
...

I checked that line and it contains information for dihedrals (made by
prodrg webserver)
[ dihedrals ]
; ai  aj  ak  al  fu    c0, c1, m, ...
   3   1   4  13   2     35.3  334.8 0     35.3  334.8 0 ; imp   C2* 
O2*  C3*  C1*
   4   3   5  11   2     35.3  334.8 0     35.3  334.8 0 ; imp   C3* 
C2*  O3*  C4*

Could you give me some suggestions? Thanks.

Lei Zhou
Columbia University
New York, NY
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