[gmx-users] error message

[Maria Sabaye Moghaddam]

Hello Everyone;

	After running:
grompp -f name.mdp -p name.top -c b4em.gro -o name.tpr

I am getting:
....
....
Making dummy/rest group for T-Coupling containing 2 elements
Fatal error: Not enough ref_t and tau_t values!

changing the ref_t and tau_t values in name.mdp doesn't change the 
outcome.  Does anyone know what I should do?

Thanks,
Maria.