[求助]Lisral做验证性因子分析图形结果出不来
如题，用Lisral对自行研制的量表进行验证性因子分析，不出图形结果，只给出拟合指标，还有一个：W_A_R_N_I_N_G: Matrix to be analyzed is not positive definite,ridge option taken with ridge constant = 1.000请问是什么原因，该怎么解决？
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