Dynare error in my simle model for Iran economics

Stochastic simulations
1

Dear friends
How can I solve the error below that dynare send to me:
also I send a file
Starting Dynare (version 5.2).
Calling Dynare with arguments: none
Starting preprocessing of the model file …
ERROR: ex1.mod: line 28, col 15: Unknown symbol: s
ERROR: ex1.mod: line 28, col 18: Unknown symbol: b
ERROR: ex1.mod: line 28, col 33: Unknown symbol: s
ERROR: ex1.mod: line 28, col 36: Unknown symbol: b
ERROR: ex1.mod: line 28, col 38: Unknown symbol: b
ERROR: ex1.mod: line 28, col 43: Unknown symbol: a
ERROR: ex1.mod: line 29, col 1: Unknown symbol: a
ERROR: ex1.mod: line 29, col 3: Unknown symbol: r
ERROR: ex1.mod: line 30, cols 1-3: Unknown symbol: c_k
ERROR: ex1.mod: line 30, col 16: Unknown symbol: b
ERROR: ex1.mod: line 30, col 25: Unknown symbol: a
ERROR: ex1.mod: line 30, col 30: Unknown symbol: b
ERROR: ex1.mod: line 30, col 34: Unknown symbol: s
my file:
ex1.mod (6.5 KB)

2

Did you upload the most recent file? I get different error messages related to variable names starting with numbers and wrong bracketing.

3

Dear Dr.
I am sorry I upload wrong file,
the correct file is in attach:
ex1.mod (1.5 KB)

4

You commented out the
parameters statement using //.

5

Dear Dr. thank you for your helpful answer,
my main problem always is in rank condition for my models for example in attached file how can I solve the problem?
ex2.mod (5.9 KB)

6

Usually the cause is a timing error. You may have to simplify your model.