几天来，我一直在努力应对奇怪的R行为。在Rstudio中，我收到消息
R Session Aborted. R encountered a fatal error. The sessios was terminated.
在控制台中，我可以看到错误：
Error in parent.frame(2L) : could not find function "°őO"
这是什么功能？我无法追溯它，也无法提供任何可复制的代码，因为在许多不同的操作过程中，它完全是意外地发生的。有时，我运行的代码正确传递，稍后，完全相同的代码引发了该错误。
我使用R 3.5.3 x64和lubridate, tidyverse和rlist库。
sessionInfo（）：
R version 3.5.3 (2019-03-11)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)
Matrix products: default
locale:
[1] LC_COLLATE=Polish_Poland.1250 LC_CTYPE=Polish_Poland.1250 LC_MONETARY=Polish_Poland.1250 LC_NUMERIC=C LC_TIME=Polish_Poland.1250
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rlist_0.4.6.1 forcats_0.3.0 stringr_1.3.1 dplyr_0.7.8 purrr_0.2.5 readr_1.3.1 tidyr_0.8.2 tibble_2.0.1 ggplot2_3.1.0
[10] tidyverse_1.2.1 lubridate_1.7.4
loaded via a namespace (and not attached):
[1] Rcpp_1.0.0 cellranger_1.1.0 pillar_1.3.1 compiler_3.5.3 plyr_1.8.4 bindr_0.1.1 tools_3.5.3 jsonlite_1.6
[9] nlme_3.1-137 gtable_0.2.0 lattice_0.20-38 pkgconfig_2.0.2 rlang_0.3.1 cli_1.0.1 rstudioapi_0.9.0 yaml_2.2.0
[17] haven_2.0.0 bindrcpp_0.2.2 withr_2.1.2 xml2_1.2.0 httr_1.4.0 hms_0.4.2 generics_0.0.2 grid_3.5.3
[25] tidyselect_0.2.5 data.table_1.12.0 glue_1.3.0 R6_2.3.0 readxl_1.2.0 modelr_0.1.2 magrittr_1.5 backports_1.1.3
[33] scales_1.0.0 rvest_0.3.2 assertthat_0.2.0 colorspace_1.4-0 stringi_1.2.4 lazyeval_0.2.1 munsell_0.5.0 broom_0.5.1
[41] crayon_1.3.4