Problem dynare file

I am using the Matlab version R2013a and dynare 4.4.2 but I can’t open my dynare file. Please I need some help. The response of my compiuter is:

dynare tesi.mod

Configuring Dynare …
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Local state space iteration (second order).
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.
[mex] Quasi Monte-Carlo sequence (Sobol).
[mex] Markov Switching SBVAR.

Starting Dynare (version 4.4.2).
Starting preprocessing of the model file …
ERROR: Could not open file: tesi.mod

Error using dynare (line 174)
DYNARE: preprocessing failed

Did you set Matlab’s current directory to the folder where tesi.mod is located?