trouble using rigid bodies in simulation

Dear Users,

  I get this error while using rigid bodies in my simulation.

WARN :
cannot count rigid body degrees-of-freedom before bodies are fully initialized

Can you please point me what might be the problem.

Best Regards,
Surendra

Dear Users,

  I get this error while using rigid bodies in my simulation.

WARN :
cannot count rigid body degrees-of-freedom before bodies are fully initialized

Can you please point me what might be the problem.

http://lammps.sandia.gov/doc/Section_errors.html