Best place to start is to provide an exact copy paste of the command you used, then an exact copy/paste of the error message.
A good resource for errors is http://www.gromacs.org/Documentation/Errors and searching the emailing list http://www.gromacs.org/Support/Mailing_Lists/Search Catch ya, Dr. Dallas Warren Medicinal Chemistry and Drug Action Monash Institute of Pharmaceutical Sciences, Monash University 381 Royal Parade, Parkville VIC 3010 [email protected] +61 3 9903 9304 --------------------------------- When the only tool you own is a hammer, every problem begins to resemble a nail. From: [email protected] [mailto:[email protected]] On Behalf Of Brody Bessire Sent: Friday, 25 February 2011 8:52 AM To: [email protected] Subject: [gmx-users] Help please. Hello all, I am an undergrad student and I am trying to learn how to run gromacs. My computer knowledge is somewhat limited so please have patience with me. I have been trying to run through the initial tutorial right now I am at the preprocessing of cpeptide with grompp and I keep getting an error stating that no molecules where defined in the system. What does that mean? I can provide more detail if prompted but I dont even know what direction to head in search of touble shooting. Thank you. Brody
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