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

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

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

Quitting from english_tutorial.Rmd:149-198 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 4/4 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─tidyfst::add_count_dt(DF, V1)
 2.   ├─dt[, `:=`((.name), .N), by = dot_string]
 3.   └─data.table:::`[.data.table`(dt, , `:=`((.name), .N), by = dot_string)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'english_tutorial.Rmd' failed with diagnostics:
attempt access index 4/4 in VECTOR_ELT
--- failed re-building ‘english_tutorial.Rmd’

--- re-building ‘example1_intro.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example1_intro.Rmd’

--- re-building ‘example2_join.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example2_join.Rmd’

--- re-building ‘example3_reshape.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example3_reshape.Rmd’

--- re-building ‘example4_nest.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example4_nest.Rmd’

--- re-building ‘example5_fst.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example5_fst.Rmd’

--- re-building ‘example6_dt.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘example6_dt.Rmd’

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

Error: Vignette re-building failed.
Execution halted