default model 是默认模型啊 就是你建立的模型 出这个是应该的

把运行结果贴出来会好一些

运行之后出现default model, 模型运行不出路径系数

Notes for Model (Default model)
Computation of degrees of freedom (Default model)
Number of distinct sample moments: 119
Number of distinct parameters to be estimated: 50
Degrees of freedom (119 - 50): 69

Result (Default model)
The model is probably unidentified. In order to achieve identifiability, it will probably be necessary to impose 2 additional constraints.

it will probably be necessary to impose 2 additional constraints. 上面说的很清楚啊 你缺少约束条件