If this is the tutorial I have in front of my eyes, then the problem is that order of force fields changed and "gromacs force field" you are told to choose is no longer under "0" as it is deprecated. "0" is ffG43a1, where this atom type is not present anymore.<br>
<br>Good luck,<br>Chris<br><br><div class="gmail_quote">2010/7/22 Yuranat Saikatikorn <span dir="ltr"><<a href="mailto:sugazy@gmail.com">sugazy@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre>I am doing the Drug-enzyme tutorial.<br>I also generated the drg.itp, drg.gro files using PRODRG server.<br>However, when I use the grompp command before the energy minimization <br>I face some error <br><br> >A fatal error was shown: atom types CR61 not found<br>
<br>The atom type CR61 is presented in the drg.itp file that I included to .top file before using grompp.<br><br>What should I do to get through this error?<br><br>Many thanks<br><br>Yuranat,<br><br></pre>
<br>--<br>
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