急需高手们指点迷津。这是本人运用单一方法潜因子法检测共同方法变异所构建的模型，可是AMOS老说“The model is probably unidentified. In order to achieve identifiability, it will probably be necessary to impose 5 additional constraints.” 这到底是哪出错了？望高手们指点，由于AMOS刚学不久，还望高手们详细阐述具体操作步骤，感激不尽。