我是用VAR model预测房价并按照教材步骤make model-solve-select dynamic or select static
结果出来没有趋势图，仅有以下文字：

Sample: 1999Q1 2010Q1
Solve Options:
        Dynamic-Deterministic Simulation
        Solver: Broyden
        Max iterations = 5000, Convergence = 1e-08

Parsing Analytic Jacobian:
0 derivatives kept, 0 derivatives discarded


求问这该怎么解决呢