Getting the up running

As i run the .mod files in Dyane, it shows the following error(looking for file with parapeteres.)

I would be gratefull If anybody could give a quick fix for this

Processing outputs …
Preprocessing completed.

Error using load
Unable to read file ‘policy_param.mat’. No such file or directory.

Error in CA_BMZ12/driver (line 1298)
load policy_param.mat;

Error in dynare (line 281)
evalin(‘base’,[fname ‘.driver’]);


could you kindly provide a code to replicate the error?