cerr<<"ERROR: mfs > 0 is incompatible with check, stoch_simul, estimation, osr, ramsey_policy, discretionary_policy, calib_smoother, identification, methods_of_moments and sensitivity commands"<<endl;
/* NB: If mfs>0 but “block” is not passed, the block-DR routines will not
be called, so do not fail in that case (we may want to use the sparse
block representation) */
cerr<<"ERROR: the `block` option used in conjunction with `mfs > 0` is incompatible with check, stoch_simul, estimation, osr, ramsey_policy, discretionary_policy, calib_smoother, identification, methods_of_moments and sensitivity commands"<<endl;