Error(s) in re-building vignettes:
--- re-building 'illustration.Rmd' using rmarkdown
Warning: stack imbalance in '::', 112 then 114
Warning: stack imbalance in 'list', 108 then 110
Warning: stack imbalance in '=', 106 then 108
Warning: stack imbalance in '{', 102 then 104
Warning: stack imbalance in 'names', 99 then 101
Warning: stack imbalance in '{', 90 then 92
Warning: stack imbalance in 'if', 88 then 90
Warning: stack imbalance in '{', 84 then 86
Warning: stack imbalance in 'if', 82 then 84
Warning: stack imbalance in '{', 78 then 80
Warning: stack imbalance in '=', 73 then 75
Warning: stack imbalance in '{', 69 then 71
Warning: stack imbalance in 'withVisible', 59 then 61

Quitting from illustration.Rmd:236-248 [bootstraps]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[1m[34m<error/rlang_error>[39m[22m
[1m[33mError[39m in [1m[94m`readRDS()`[39m[1m:[22m
[33m![39m cannot open the connection to 'https://go.wisc.edu/977l04'
---
[1mBacktrace:[22m
[90m    [39m▆
[90m 1. [39m└─[1mbase[22m::readRDS(url("https://go.wisc.edu/977l04"))
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'illustration.Rmd' failed with diagnostics:
cannot open the connection to 'https://go.wisc.edu/977l04'
--- failed re-building 'illustration.Rmd'

--- re-building 'random.Rmd' using rmarkdown
Warning: stack imbalance in '::', 112 then 114
Warning: stack imbalance in 'list', 108 then 110
Warning: stack imbalance in '=', 106 then 108
Warning: stack imbalance in '{', 102 then 104
Warning: stack imbalance in 'names', 99 then 101
Warning: stack imbalance in '{', 90 then 92
Warning: stack imbalance in 'if', 88 then 90
Warning: stack imbalance in '{', 84 then 86
Warning: stack imbalance in 'if', 82 then 84
Warning: stack imbalance in '{', 78 then 80
Warning: stack imbalance in '=', 73 then 75
Warning: stack imbalance in '{', 69 then 71
Warning: stack imbalance in 'withVisible', 59 then 61
--- finished re-building 'random.Rmd'

SUMMARY: processing the following file failed:
  'illustration.Rmd'

Error: Vignette re-building failed.
Execution halted