Dynare Error reporting

Dear Sir,
I had no problem running the following model file in the Dynare4.5.7 version, but there was an error running the model file in the latest version 4.6.3,hoping to anwser.

steady_state.mod (2.9 KB) This is my model file.

You must not name your file steady_state. Otherwise you will get

Dot indexing is not supported for variables of this type.

Error in steady_state.dynamic (line 6)
[residual, g1] = steady_state.dynamic_resid_g1(T, y, x, params, steady_state, it_, true);

Thank you for your help. Now the problem has been solved.Thank you very much