Bayesian estimation: post-estimation error

Hi everybody.
I am getting an error while dynare generates model-based SDGE variables. It goes like

[quote]??? Subscripted assignment dimension mismatch.
Error in ==> metropolis at 1590
stock_error(:,:,irun_erro) = obs_err;
Error in ==> dynare_estimation at 778
metropolis(xparam1,invhess,gend,data,rawdata,bounds);
Error in ==> mod_final5 at 212
dynare_estimation(var_list_);
Error in ==> dynare at 26
evalin(‘base’,fname) ;[/quote]

Any comment or suggestion will be much appreciated.

Best regards,

-Aykut