求问各位大佬，我用AMOS做路径分析的时候，出现残差系数为负数的问题，该怎么解决啊，是我的数据的问题吗，这是错误提示：During the analysis of a bootstrap sample, an attempt was made to compute a standardized regression weight between two variables, one of whose estimated variances failed to be positive.This attempt was made because " Standardized estimates" in the "Analysis Properties'”window was checked, or because the Standardized method was used, or because a user-defined estimand requires calculating standardized estimates.