question about bonds

Dear all,

I have implemented a variant of the harmonic bond that is anisotropic, with different equilibrium distances in the three different directions. Now I want to vary the equilibrium distance in space. I have tried to define different groups with different lengths but gives me the error:

ERROR: All bond coeffs are not set

I’m not sure what’s the best way to go.

Thanks,
Enrique

please keep in mind that reposting the same question multiple times in
close succession will only alienate people rather than increasing your
chances for help.
also consider that on christmas, people tend to be a bit occupied with
other activities than answering posts on scientific mailing lists.

axel.