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    On 18/11/2011 7:40 AM, Anushree Tripathi wrote:
    <blockquote
cite="mid:CAAx43BzQ3hApSLc++ui1umpvrsBmL0wgo7pBHJWtG-f1cKB_VA@mail.gmail.com"
      type="cite">Yes I m using 4.0.7 version.so for that how could I
      change the name accordingly.<br>
    </blockquote>
    <br>
    You used it in your [molecules] section. Change it to what it should
    be, per ions.itp.<br>
    <br>
    Mark<br>
    <br>
    <blockquote
cite="mid:CAAx43BzQ3hApSLc++ui1umpvrsBmL0wgo7pBHJWtG-f1cKB_VA@mail.gmail.com"
      type="cite"><br>
      <div class="gmail_quote">On Sat, Nov 5, 2011 at 1:37 AM, Justin A.
        Lemkul <span dir="ltr">&lt;<a moz-do-not-send="true"
            href="mailto:jalemkul@vt.edu">jalemkul@vt.edu</a>&gt;</span>
        wrote:<br>
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              <br>
              Anushree Tripathi wrote:<br>
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                when i run the given command i.e,<br>
                <br>
                grompp -f minim.mdp -c 1AKI_solv_ions.gro -p topol.top
                -o em.tpr<br>
                It is showing fatal error:No such molecule type NA.<br>
                How could I troubleshoot this problem?<br>
                <br>
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          Ion naming is listed in ions.itp - the "NA" name works for all
          force fields in the Gromacs 4.5.x series. &nbsp;Older versions had
          force field-specific naming so you will have to change the
          name accordingly if you're using one of these versions.<br>
          <br>
          -Justin<br>
          <br>
          -- <br>
          ========================================<br>
          <br>
          Justin A. Lemkul<br>
          Ph.D. Candidate<br>
          ICTAS Doctoral Scholar<br>
          MILES-IGERT Trainee<br>
          Department of Biochemistry<br>
          Virginia Tech<br>
          Blacksburg, VA<br>
          jalemkul[at]<a moz-do-not-send="true" href="http://vt.edu"
            target="_blank">vt.edu</a> | (540) 231-9080<br>
          <a moz-do-not-send="true"
            href="http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin"
            target="_blank">http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin</a><br>
          <br>
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