我最近开始学习R，并尝试使用browsrVignettes，但是它不起作用并且什么也没显示。 vignettes（）正常工作。
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 16299)
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] ggplot2_3.3.2
loaded via a namespace (and not attached):
[1] withr_2.2.0 crayon_1.3.4 grid_4.0.2 R6_2.4.1 lifecycle_0.2.0
[6] gtable_0.3.0 magrittr_1.5 scales_1.1.1 pillar_1.4.4 rlang_0.4.6
[11] rstudioapi_0.11 vctrs_0.3.1 ellipsis_0.3.1 tools_4.0.2 glue_1.4.1
[16] munsell_0.5.0 compiler_4.0.2 pkgconfig_2.0.3 colorspace_1.4-1 tibble_3.0.1