Why can't find a datafile?

Hi, I have a mod file and data for estimation. But it returned some warnings as below,

makedataset (line 107)
makedataset: I can’t find a datafile (with allowed extension m, mat, csv, xls or xlsx)!

dynare_estimation_init (line 538)
[dataset_, dataset_info, newdatainterfaceflag] = makedataset(options_,
options_.dsge_var*options_.dsge_varlag, gsa_flag);
dynare_estimation_1 (line 116)
dynare_estimation_init(var_list_, dname, [], M_, options_, oo_, estim_params_, bayestopt_);
dynare_estimation (line 105)

two (line 790)
dynare (line 223)
evalin(‘base’,fname) ;`



from the option that you give in the “estimation” command, your data should be in a file called “chiianandusa”, with an extension of m, mat, csv, xls or xlsx depending of the format that you used to save your data.

The error message indicates that Dynare can’t find such a file