<div>Dear friends,</div>
<div>I have the following topology for system including CNT+peptide+water</div>
<div>When I grompp for minimization, I got the following error. How can I solve it?</div>
<div> </div>
<div>best wishes</div>
<div>trevor</div>
<div> </div>
<div>WARNING 1 [file ffbonded.itp, line 2703]:<br> Overriding Bond parameters.</div>
<div> old: 0.151 292880 0.151 292880 <br> new: C C 1 0.14210 478900</div>
<div><br>ERROR 1 [file ffbonded.itp, line 2709]:<br> Not enough parameters</div>
<div><br>-------------------------------------------------------<br>Program grompp, VERSION 4.5.3<br>Source code file: topio.c, line: 675</div>
<div>Fatal error:<br>Syntax error - File forcefield.itp, line 20<br>Last line read:<br>'1 3 yes 0.5 0.5'<br>Found a second defaults directive.</div>
<div> </div>
<div> </div>
<div> </div>
<div>TOPOLOGY</div>
<div>; Include forcefield parameters<br>#include "oplsaa.ff/forcefield.itp"</div>
<div><br>; Include topology for CNT<br>#include "cnt.itp"</div>
<div>; Include topology for UW1<br>#include "uw1.itp"</div>
<div>; Include water topology<br>#include "oplsaa.ff/spc.itp"</div>
<div>[ system ]<br>; Name<br>Protein and CNT in water</div>
<div>[ molecules ]<br>; Compound #mols<br>Protein 1<br>CNT 1<br>SOL 4019 </div>