Question regarding rank condition

[baram83]

hello, I'm using Dynare 4.1.1 in Matlab 7.10.0.499(R2010a) with Mac.
I built simple two country business cycle model with 4 forward-looking variable: b(+1), b*(1), c(+1) and c(+1), bunch of static variables and then tried to solve the model.
However, I got message saying:

EIGENVALUES:
Modulus Real Imaginary

0.818 0.818 0
0.94 0.94 0
0.994 0.994 0
Inf Inf 0
Inf Inf 0
Inf Inf 0


There are 3 eigenvalue(s) larger than 1 in modulus
for 4 forward-looking variable(s)

The rank conditions ISN'T verified!

??? Error using ==> print_info at 45
Blanchard Kahn conditions are not satisfied: indeterminacy due to rank failure

Error in ==> stoch_simul at 46
print_info(info, options_.noprint);

Error in ==> Nov8e at 320
info = stoch_simul(var_list_);

Error in ==> dynare at 132
evalin('base',fname) ;

My question is that generally what should I consider to work on if I see the message that "The rank condition ISN't verified"?

Just in case, I'm attaching the mod file I was using to this posting. Please help me regarding this rank condition.
Any tip or any comment will be really helpful regarding this. Thank you so much for reading this.

[SébastienVillemot]

This error message means that your model, with the parameterization that you gave, does not support a unique stable rational expectations equilibrium.

You need to change your model equations or your parameterization.

Search through the forum archives, this question has been answered many times.

Best,