Strangely, I have the same issue on one of my (smaller) laptop, but not with large data (90k observations, bernoulli mixed model, cmdstanr backend)… despite updating all from latest GitHub. Any thoughts?
Compiling Stan program...
Start sampling
Running MCMC with 4 parallel chains...
Warning: Chain 1 finished unexpectedly!
Warning: Chain 2 finished unexpectedly!
Warning: Chain 3 finished unexpectedly!
Warning: Chain 4 finished unexpectedly!
Warning: Use read_cmdstan_csv() to read the results of the failed chains.
Error in cmdstanr::read_cmdstan_csv(out$output_files(), variables = "", :
Assertion on 'files' failed: No file provided.
In addition: Warning messages:
1: All chains finished unexpectedly! Use the $output(chain_id) method for more information.
2: No chains finished successfully. Unable to retrieve the fit.
R version 4.2.0 (2022-04-22 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19042)
Matrix products: default
locale:
[1] LC_COLLATE=English_Singapore.utf8 LC_CTYPE=English_Singapore.utf8
[3] LC_MONETARY=English_Singapore.utf8 LC_NUMERIC=C
[5] LC_TIME=English_Singapore.utf8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] brms_2.17.5 Rcpp_1.0.8.3 cmdstanr_0.5.3
loaded via a namespace (and not attached):
[1] Brobdingnag_1.2-8 jsonlite_1.8.0 gtools_3.9.3
[4] StanHeaders_2.21.0-7 RcppParallel_5.1.5 threejs_0.3.3
[7] shiny_1.7.2 assertthat_0.2.1 posterior_1.2.2
[10] distributional_0.3.0 stats4_4.2.0 tensorA_0.36.2
[13] pillar_1.8.0 backports_1.4.1 lattice_0.20-45
[16] glue_1.6.2 digest_0.6.29 promises_1.2.0.1
[19] checkmate_2.1.0 colorspace_2.0-3 htmltools_0.5.2
[22] httpuv_1.6.5 Matrix_1.4-1 plyr_1.8.7
[25] dygraphs_1.1.1.6 pkgconfig_2.0.3 rstan_2.21.5
[28] purrr_0.3.4 xtable_1.8-4 mvtnorm_1.1-3
[31] scales_1.2.0 processx_3.7.0 later_1.3.0
[34] tibble_3.1.8 bayesplot_1.9.0 generics_0.1.3
[37] farver_2.1.1 ggplot2_3.3.6 ellipsis_0.3.2
[40] DT_0.23 shinyjs_2.1.0 cli_3.3.0
[43] crayon_1.5.1 magrittr_2.0.3 mime_0.12
[46] ps_1.7.1 fansi_1.0.3 nlme_3.1-157
[49] xts_0.12.1 pkgbuild_1.3.1 colourpicker_1.1.1
[52] prettyunits_1.1.1 tools_4.2.0 loo_2.5.1
[55] lifecycle_1.0.1 matrixStats_0.62.0 stringr_1.4.0
[58] munsell_0.5.0 callr_3.7.0 compiler_4.2.0
[61] rlang_1.0.4 grid_4.2.0 ggridges_0.5.3
[64] rstudioapi_0.13 htmlwidgets_1.5.4 crosstalk_1.2.0
[67] igraph_1.3.1 miniUI_0.1.1.1 base64enc_0.1-3
[70] codetools_0.2-18 gtable_0.3.0 inline_0.3.19
[73] abind_1.4-5 DBI_1.1.2 markdown_1.1
[76] reshape2_1.4.4 R6_2.5.1 gridExtra_2.3
[79] rstantools_2.2.0 zoo_1.8-10 knitr_1.39
[82] bridgesampling_1.1-2 dplyr_1.0.9 fastmap_1.1.0
[85] utf8_1.2.2 shinythemes_1.2.0 shinystan_2.6.0
[88] stringi_1.7.6 parallel_4.2.0 vctrs_0.4.1
[91] tidyselect_1.1.2 xfun_0.31 coda_0.19-4