run erroe

[liubin]

hI, Michel,
when I run dynare4.02, the following emssages appear,

??? Undefined function or variable "LIK".
Error in ==> DsgeLikelihood_hh at 224
if imag(LIK) ~= 0

Error in ==> mr_hessian at 35
[f0, ff0]=feval(func,x,varargin{:});

Error in ==> newrat at 50
[dum, gg, htol0, igg, hhg]=mr_hessian(func_hh,x,flagit,htol,varargin{:});

Error in ==> dynare_estimation at 407
[xparam1,hh,gg,fval,invhess] = newrat('DsgeLikelihood',xparam1,hh,gg,igg,crit,nit,flag,gend,data);

Error in ==> nnliufdsge at 1527
dynare_estimation(var_list_);

Error in ==> dynare at 102
evalin('base',fname) ;

can you tell me what's the problem?
thanks a lot.