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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">First suggestion is check the existing resources that already exist to help you with problems with GROMACS.&nbsp; Start with the error page on the website
<a href="http://www.gromacs.org/Documentation/Errors">http://www.gromacs.org/Documentation/Errors</a> it has further details on more common the errors that you may encounter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Second suggestion is to check out the support page
<a href="http://www.gromacs.org/Support">http://www.gromacs.org/Support</a> which has some great advice on what to do, including general etiquette in asking for help.&nbsp; I have replied to your email to the emailing list, which is where discussions like this should
 be held, unless you are paying me for support ;-)&nbsp; If you followed the advice there your searching would have pulled up some very similar questions from other users on the emailing list, with a number of possible reasons and solutions.&nbsp; Plus you would have
 found the link below I have provided.&nbsp; You should always check the existing resources first, since for those starting out it is highly unlikely to encounter something that hasn&#8217;t been seen, discussed and solved before.&nbsp; If you do that, it will be far faster
 than waiting for some unknown person to provide you an answer, and you will learn more in the process.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">For the particular error you have observed see
<a href="http://www.gromacs.org/Documentation/Errors#Atom_X_in_residue_YYY_not_found_in_rtp_entry">
http://www.gromacs.org/Documentation/Errors#Atom_X_in_residue_YYY_not_found_in_rtp_entry</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">If that is not the reason, there are a couple of others that I have noticed being mentioned on the emailing list.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Catch ya,<br>
<br>
Dr. Dallas Warren<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Medicinal Chemistry and Drug Action<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Monash Institute of Pharmaceutical Sciences</span><span style="font-size:10.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">, Monash University<br>
381 Royal Parade, Parkville VIC 3010<br>
dallas.warren@monash.edu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&#43;61 3 9903 9304<br>
---------------------------------<br>
When the only tool you own is a hammer, every problem begins to resemble a nail.</span><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> seera suryanarayana [mailto:palusoori@gmail.com]
<br>
<b>Sent:</b> Tuesday, 1 May 2012 7:25 PM<br>
<b>To:</b> Dallas Warren<br>
<b>Subject:</b> Regarding errors<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">Hello,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; While i am running the gromacs software i am getting the following error.<br>
Fatal error:<br>
Atom HA in residue MET 1 was not found in rtp entry MET with 11 atoms<br>
while sorting atoms.<br>
Is there any explanation why is this happening?<br>
I eould appreciate any help.<br>
I am new in using MD and gromacs in particular.<br>
<br>
Thanks and regards<br>
Suryanarayana Seera,<br>
Juniur Research Fellow,<br>
India.<o:p></o:p></p>
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