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<!--SOHUMAIL_HTML_HEAD_END--><p>when I use the following command ,there always a error message.Can you help me ? Thank you very much !</p><p>command: <font color="#ff0000">grompp -f em.mdp -c trp_b4em.gro -p trp.top -o trp_em.tpr</font><br /> </p><p>error message:<br /> .<br /> .<br />creating statusfile for 1 node...<br />Back Off! I just backed up mdout.mdp to ./#mdout.mdp.1#<br />checking input for internal consistency...<br />calling /usr/bin/cpp...<br />processing topology...<br />Generated 279 of the 1225 non-bonded parameter combinations<br />Excluding 3 bonded neighbours for Protein 1<br />Excluding 3 bonded neighbours for IN4 1<br />Excluding 2 bonded neighbours for SOL 4145<br />Cleaning up temporary file gromppD2IkOr<br />-------------------------------------------------------<br />Program grompp, VERSION 3.3<br />Source code file: toppush.c, line: 1264<br />Fatal error:<br />No such moleculetype Cl<br />-------------------------------------------------------</p><p> </p><p>enviroment:</p><p><br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<br />extra information:<br /> OS: Red Hat Linux AS4<br /> fftw: fftw-3.1.2.tar.tar<br />gromacs: gromacs-3.3.tar.gz</p><p>installation :<br />1.fftw<br />./configure --enable-float<br />make<br />make install <br />2. gromacs<br />./configure CPPFLAGS="-I/gromacs/gromacs-3.3/include" LDFLAGS="-L/gromacs/fftw-3.1.2/libbench2" <br />make <br />make install<br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</p><br><br><div class="idiograph" style="border:0px #A74A1E solid"><div class="w290"><div class="w134"></div><div class="w156"></div><div class="clear"></div></div></div><hr size=1><style type="text/css">
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