Brms not fitting any models

I call brms and it loads, however, when I try to fit any model it “compiles” but then never samples, for eg:

> library(brms)
> fit1 <- brm(count ~ zAge + zBase * Trt + (1|patient), 
+             data = epilepsy, family = poisson())
Compiling Stan program...
> summary(fit1)
Error in summary(fit1) : object 'fit1' not found

Windows 10

> sessionInfo()
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17134)

Matrix products: default

[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] MASS_7.3-51.6     boot_1.3-25       brms_2.13.5       data.table_1.13.0 rstanarm_2.21.1   Rcpp_1.0.5       

loaded via a namespace (and not attached):
  [1] nlme_3.1-148         matrixStats_0.56.0   xts_0.12-0           threejs_0.3.3        rstan_2.21.2         backports_1.1.8     
  [7] tools_4.0.2          R6_2.4.1             DT_0.14              betareg_3.1-3        mgcv_1.8-31          colorspace_1.4-1    
 [13] nnet_7.3-14          withr_2.2.0          Brobdingnag_1.2-6    tidyselect_1.1.0     gridExtra_2.3        prettyunits_1.1.1   
 [19] processx_3.4.3       curl_4.3             compiler_4.0.2       cli_2.0.2            shinyjs_1.1          sandwich_2.5-1      
 [25] labeling_0.3         colourpicker_1.0     scales_1.1.1         dygraphs_1.1.1.6     lmtest_0.9-37        mvtnorm_1.1-1       
 [31] ggridges_0.5.2       callr_3.4.3          stringr_1.4.0        digest_0.6.25        StanHeaders_2.21.0-5 minqa_1.2.4         
 [37] base64enc_0.1-3      pkgconfig_2.0.3      htmltools_0.5.0      lme4_1.1-23          fastmap_1.0.1        htmlwidgets_1.5.1   
 [43] rlang_0.4.7          rstudioapi_0.11      shiny_1.5.0          generics_0.0.2       farver_2.0.3         zoo_1.8-8           
 [49] jsonlite_1.7.0       crosstalk_1.1.0.1    gtools_3.8.2         dplyr_1.0.1          inline_0.3.15        magrittr_1.5        
 [55] modeltools_0.2-23    Formula_1.2-3        loo_2.3.1            bayesplot_1.7.2      Matrix_1.2-18        munsell_0.5.0       
 [61] fansi_0.4.1          abind_1.4-5          lifecycle_0.2.0      stringi_1.4.6        flexmix_2.3-15       pkgbuild_1.1.0      
 [67] plyr_1.8.6           grid_4.0.2           parallel_4.0.2       promises_1.1.1       crayon_1.3.4         miniUI_0.1.1.1      
 [73] lattice_0.20-41      splines_4.0.2        ps_1.3.3             pillar_1.4.6         igraph_1.2.5         markdown_1.1        
 [79] shinystan_2.5.0      reshape2_1.4.4       codetools_0.2-16     stats4_4.0.2         rstantools_2.1.1     glue_1.4.1          
 [85] V8_3.2.0             RcppParallel_5.0.2   vctrs_0.3.2          nloptr_1.2.2.2       httpuv_1.5.4         gtable_0.3.0        
 [91] purrr_0.3.4          assertthat_0.2.1     ggplot2_3.3.2        mime_0.9             xtable_1.8-4         coda_0.19-3         
 [97] later_1.1.0.1        rsconnect_0.8.16     survival_3.1-12      tibble_3.0.3         shinythemes_1.1.2    statmod_1.4.34      
[103] ellipsis_0.3.1       bridgesampling_1.0-0

Any chance this is working now that rstan is back up and running for you?

It is working now that rstan is working for me, thanks