[gmx-users] Re: Fatal error: Atomtype O2 not found

[Mark Abraham]

On 9/06/2012 11:08 PM, ramaraju801 wrote:
> as i said my system is an protein-DNA complex and the error popped up only
> for atoms in DNA residues.

That's about 1% of the detail you'll need to provide in order for it to 
be worth any more of anybody's time helping you :-) See 
http://www.gromacs.org/Support for advice on how to effectively ask for 
help. A complete description of your system contents, and copied and 
pasted input and output is essential. You already know from past threads 
that your termini are an issue, so make sure you focus on those details.

Mark