Error(s) in re-building vignettes:
  ...
--- re-building ‘colors.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘colors.Rmd’

--- re-building ‘frames.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘frames.Rmd’

--- re-building ‘imagery.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘imagery.Rmd’

--- re-building ‘languages.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘languages.Rmd’

--- re-building ‘layouts.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘layouts.Rmd’

--- re-building ‘regex.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘regex.Rmd’

--- re-building ‘scryr.Rmd’ using rmarkdown

Quitting from scryr.Rmd:114-132 [unnamed-chunk-7]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! Please install xml2 package
---
Backtrace:
    ▆
 1. ├─utils::head(scry_catalog("keyword-actions"))
 2. └─scryr::scry_catalog("keyword-actions")
 3.   └─scryr:::scry_catalogs_impl(paste0("/", name))
 4.     └─scryr:::scryfall(paste0("/catalog", endpoint))
 5.       └─scryr:::http_get(paste0("https://api.scryfall.com", endpoint))
 6.         └─httr::content(resp, encoding = "UTF-8")
 7.           └─httr:::parse_auto(raw, type, encoding, ...)
 8.             └─httr (local) parser(x = content, type = type, encoding = encoding, ...)
 9.               └─httr:::need_package("xml2")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'scryr.Rmd' failed with diagnostics:
Please install xml2 package
--- failed re-building ‘scryr.Rmd’

--- re-building ‘syntax.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘syntax.Rmd’

SUMMARY: processing the following file failed:
  ‘scryr.Rmd’

Error: Vignette re-building failed.
Execution halted