在运行程序时显示下面的问题，请问各位老师我的问题出在哪里？新手不大会用这个。
Configuring Dynare ...
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Local state space iteration (second order).
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.
[mex] Quasi Monte-Carlo sequence (Sobol).
[mex] Markov Switching SBVAR.

Starting Dynare (version 4.3.3).
Starting preprocessing of the model file ...
ERROR: liu.mod:39.1: character unrecognized by lexer

Error using dynare (line 114)
DYNARE: preprocessing failed