Hello, Got the following info from the brms package Maintainer.
"This is a caused by a problem in the current rstan CRAN version on Windows and is not related to brms. You can find various threads that deal with that topic on https://discourse.mc-stan.org/. For now, it may be easiest to revert to rstan 2.19.3." Thanks Witek On Mon, 13 Jul 2020 at 15:41, Witold E Wolski <wewol...@gmail.com> wrote: > > Hello, > > I upgraded today to R4.0.2 from 3.6.3 on my Windows machine (actually > 2 of them - first desktop and then laptop just to verify the problem) > and on both of them I am getting the following error when running the > brms::brm function example code. > > ``` > > bprior1 <- prior(student_t(5,0,10), class = b) + > + prior(cauchy(0,2), class = sd) > > fit1 <- brm(count ~ zAge + zBase * Trt + (1|patient), > + data = epilepsy, family = poisson(), prior = bprior1) > Compiling the C++ model > > > > fit1 > Error: object 'fit1' not found > ``` > > I tried to get some more information by setting `silent = FALSE` but > nothing is being printed. > All I see is: > > ``` > > brm(count ~ zAge + zBase * Trt + (1|patient), > + data = epilepsy, family = poisson(), prior = bprior1, silent=FALSE) > Compiling the C++ model > > > ``` > > R tools is installed and I did test that they work properly. > Also: > > ``` > system.file(package = "StanHeaders") > [1] "C:/Users/wewol/OneDrive/Documents/R/win-library/4.0/StanHeaders" > ``` > > Help highly appreciated. > > Witek > -- > Witold Eryk Wolski -- Witold Eryk Wolski ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
