[gmx-users] sub: topology error...

[kalai sivam]

dear gromacs user,

      I have created topology for protein - ligand interaction by using
OPLS-AA force field....

some of the error happen like this:




**  [file topol.top, line 206]:                                   No
default Ryckaert-Bell. types**

  for basically what is the meaning of the error ..??
  what parameters should i change to overcome this problem.
   pls give suggestion to me...

         * thanks advance.....*