最近在学Dynare，看到B站up主的视频，复制下面代码放进mod文件，然后用matlab跑
var y, c, k, n, a, w, r, i;
varexo e;

parameters beta, rho, alpha, delta, chi;

alpha = 0.33;
rho   = 0.95;
beta  = 0.99;
delta = 0.023;
chi = 1.75;
  
model;
chi*c/(1-n) = w
1 = beta * (c/c(+1)) * (r(+1) + (1-delta));
w = (1-alpha)*a*k(-1)^(alpha)*n^(-alpha);
r = alpha*a*k(-1)^(alpha-1)*n^(1-alpha);
y = c+i;
k = (1-delta)*k(-1)+i;
y = a*k(-1)^alpha*n^(1-alpha);
log(a) = rho*log(a(-1))+e;
end;

initval;
  
y = c+delta*k;
c = 0.76;
n = 1/3;
k = 9;
a = 1;
e = 0;
end;

shocks;
var e = .01^2;
end;

steady;
check;

stoch_simul(order=1);


matlab报错
>> dynare RBCStarting Dynare (version 5.4).
Calling Dynare with arguments: none
Starting preprocessing of the model file ...
ERROR: RBC.mod: line 14, col 1: syntax error, unexpected INT_NUMBER

这是什么原因啊？