I encountered the below errors when I run the spatial AFT survival model with CAR prior to the SpBayesSurv package.
Error1:
"Starting initial MCMC based on parametric model:
Error in solve.default(scaleS * Shat0) : Lapack routine dgesv: system is exactly singular: U[1,1] = 0"
Error 2:
"chol(): decomposition failed "
Best regards
Eisa