Am I doing something wrong? I tried running the CFA demo, but got this error message:

A latent variable 'G' was created. Running CFA with 15 parameters ?umxSummary showEstimates='raw|std', digits, report= 'html', filter= 'NS' & more Running Saturated CFA with 20 parameters Warning incurred trying to run model In model 'Saturated CFA' Optimizer returned a non-zero status code 6. The model does not satisfy the first-order optimality conditions to the required accuracy, and no improved point for the merit function could be found during the final linesearch (Mx status RED)