Latent Growth Curve Model, Not Identified

[Amy Zhang]

Hi everyone! I am fitting a growth curve model with four waves of data (1997, 2000, 2005, 2016). The dependent variables are latent variables with two indicators across four waves. Here are the graphs and Stata codes. I received this error message: "model not identified; no paths from latent variable Intercept to observed variables." When fitting a Structural Equation Model, do I have to create a path between a latent variable to observed variables? If the model is wrong, what models should I look for to fit a growth curve model with latent dependent variables across waves?

[Amy Zhang]

Sorry...I got the directions wrong. It should be from intercept and slope to support6, support7, support8, and support9. I also added constraints to the CFA part of the model. It seems that it is running, but it is super slow. I am not sure it will work.