Error in re-building vignettes:
  ...
Warning in structure(out, pred = pred, modx = modx, alpha = alpha, plot = plot) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
Warning in structure(out, pred = pred, modx = modx, alpha = alpha, plot = plot) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
Warning in structure(ss, digits = digits) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
Warning in structure(out, pred = pred, modx = modx, alpha = alpha, plot = plot) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
Warning in structure(out, pred = pred, modx = modx, alpha = alpha, plot = plot) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
Warning in structure(out, pred = pred, modx = modx, alpha = alpha, plot = plot) :
  Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
  Consider 'structure(list(), *)' instead.
--smart/-S has been removed.  Use +smart or -smart extension instead.
For example: pandoc -f markdown+smart -t markdown-smart.
Try pandoc.exe --help for more information.
Warning: running command '"D:/compiler/pandoc/pandoc" +RTS -K512m -RTS interactions.utf8.md --to html --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output interactions.html --smart --email-obfuscation none --self-contained --standalone --section-divs --template "d:\RCompile\CRANpkg\lib\3.5\rmarkdown\rmd\h\default.html" --highlight-style pygments --css "d:\RCompile\CRANpkg\lib\3.5\rmarkdown\rmarkdown\templates\html_vignette\resources\vignette.css" --mathjax --variable "mathjax-url:https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"' had status 2
Error: processing vignette 'interactions.Rmd' failed with diagnostics:
pandoc document conversion failed with error 2
Execution halted