Please help me about this ERROR!

Hello every one!
I have a very simple model. It shows these errors when I run it. I cant understand how can I solve it!
These are the errors:

Error in ==> check at 76
print_info(info, options.noprint);

Error in ==> Simple_model at 248
check(M_,options_,oo_);

Error in ==> dynare at 120
evalin(‘base’,fname) ;

could you please help me?
Any help would be appreciated.
I can not attach the file so I write all bellow!

[code]var yy_o yy_T ii_o ii_T cc aa_o aa_T tt ww_o ww_T rr_o rr_T ll_o ll_T qq kk_o kk_T;
varexo e_o e_T e_oil yy_oil;

parameters y_oil_bar y_o_bar y_T_bar c_bar q_bar t_bar i_o_bar i_T_bar l_o_bar l_T_bar k_o_bar k_T_bar r_o_bar r_T_bar w_o_bar w_T_bar a_o_bar a_T_bar betaa b rho_o rho_T rho_oil alphaa alpha_o deltaa delta_T thetaa ethaa gama_o gama_T;

betaa = 0.99;
b = 1.9 ;
rho_o = 0.72;
rho_T = 0.5;
rho_oil = 0.5;
alphaa = 0.412;
alpha_o = 0.5;
deltaa = 0.042;
delta_T = 0.5;
ethaa = 1.003;
thetaa = 2.95;
gama_o = 0.5;
gama_T = 0.1;
y_oil_bar = 1.0791e+004 ;
a_o_bar = 1.2000 ;
a_T_bar = 1.2000 ;
r_o_bar = 2.0640 ;
r_T_bar = 2.0640 ;
w_T_bar = 5.5751e-006 ;
c_bar = 5.5751e-005 ;
k_T_bar = -2.1376e-009 ;
q_bar = -555.2767 ;
k_o_bar = 5.7293e-006 ;
y_T_bar = -1.0657e-008 ;
i_T_bar = -4.0276 ;
y_o_bar = -5.3286e-009 ;
l_T_bar = -1.6439e-004 ;
t_bar = -2.1157e-008 ;
w_o_bar = 2.7876e-005 ;
l_o_bar = 3.7275e-004 ;
i_o_bar = 1.0795e+004 ;

model (linear);

yy_T = aa_T + alphaa * kk_T + (1-alphaa-alpha_o) * ll_T + alpha_o * yy_o ;
yy_o = aa_o + thetaa * kk_o + (1-thetaa) * ll_o ;
aa_o = rho_o * aa_o(-1) + e_o ;
aa_T = rho_T * aa_T(-1) + e_T ;
yy_oil = rho_oil * yy_oil(-1) + e_oil ;
kk_T = ii_T+kk_o-ii_o ;
cc = ww_o ;
cc = ww_T ;
cc = betaa/ethaa*(rr_o(+1)-(1-deltaa+r_o_bar)cc(+1)) ;
cc = betaa/ethaa
(rr_T(+1)-(1-deltaa+r_o_bar)cc(+1)) ;
ww_o = y_o_bar/w_o_bar
(1-thetaa)/l_o_bar*(yy_o-ll_o) ;
cc = betaar_o_barc_barrr_o(+1)+ betaa(1-deltaa)c_bar/ethaacc(+1)- betaathetaay_o_barc_bar/k_o_bar(yy_o(+1)-kk_o(+1));
cc = betaa/ethaa*(1-deltaa)cc(+1) ;
ww_T = y_T_bar/(w_T_bar
l_T_bar)(1-alphaa-alpha_o)(yy_T-ll_T) ;
yy_o = 1/y_o_bar*(c_barcc + i_o_barii_o + i_T_barii_T + y_oil_baryy_oil) ;
ii_T = 1/i_T_bar*(w_T_barl_T_barww_Tll_T+w_o_barl_o_barww_oll_o+y_oil_baryy_oil+r_T_bark_T_barrr_Tkk_T+r_o_bark_o_barrr_okk_o-c_barcc-i_o_barii_o-q_barqq*(ethaat_bar-(1-delta_T)t_bar)-(q_bar+q_barqq)(ethaat_bartt(+1)-(1-delta_T)t_bartt)) ;
yy_T = cc-qq ;

end;

steady;

check;

shocks;
var e_o ; stderr 0.045;
var e_T ; stderr 0.045;
var e_oil ; stderr 0.045;
% var e_T e_o e_oil ;
end;

stoch_simul;[/code]

model_diagnostics says

[quote]model_diagnostic: the Jacobian of the static model is singular
there is 3 colinear relationships between the variables and the equations
Relation 1
Colinear variables:
yy_o
yy_T
ii_o
ii_T
tt
ll_o
ll_T
qq
kk_o
kk_T
Relation 2
Colinear variables:
yy_o
yy_T
ii_o
ii_T
tt
ll_o
ll_T
qq
kk_o
kk_T
Relation 3
Colinear variables:
yy_o
yy_T
ii_o
ii_T
tt
ll_o
ll_T
qq
kk_o
kk_T
Relation 1
Colinear equations
1 2 3 4 6 7 8 9 11 12 13 14 15 16 17

Relation 2
Colinear equations
5 9 12 13 18

Relation 3
Colinear equations
5 18
[/quote]

Thank you very much for your fast reply!
But how can I solve this problem?
I am confused about it!
A little bit of clarification is appreciated!
Thank you in advance.

Please search the forum. Often it means that either there is a unit root in your model or you are missing an equation while having a redundant one in the model (usually due to Walras Law)