Simple first order difference equation with Dynare 4.0.1

[FRIDAY]

I am studying the use of Dynare. I have a model in which there are only backword looking variables. I encountered a problem but I found a useful answer in this forum (viewtopic.php?f=1&t=2248#p4407). I can run a program with a "dummy" forward looking variable as suggested by ales but I cannot run the program in the snapshot though I am using Dynare 4.0.1. Does any one know what is wrong ?

The error messages are the following:

Configuring Dynare ...
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.

"/Applications/Dynare/4.1.0/matlab/dynare_m" filename.mod: Bus error
Starting Dynare (version 4.1.0).
Starting preprocessing of the model file ...
Found 1 equation(s).
Evaluating expressions...done
Computing static model derivatives:
- order 1
Normalizing the model...
Finding the optimal block decomposition of the model ...
1 block(s) found:
1 recursive block(s) and 0 simultaneous block(s).
the largest simultaneous block has 0 equation(s)
and 0 feedback variable(s).
Computing dynamic model derivatives:
- order 1
Normalizing the model...
Finding the optimal block decomposition of the model ...
1 block(s) found:
1 recursive block(s) and 0 simultaneous block(s).
the largest simultaneous block has 0 equation(s)
and 0 feedback variable(s).

??? Error using ==> dynare at 126
DYNARE: preprocessing failed

[StephaneAdjemian]

Hi, can you post your mod file ?
Best, Stéphane.

[FRIDAY]

Hi, Stéphane
Sorry for late response,
Here's my mod file. Please let me know if there is something wrong in my file.
Best.