Error: ! object 'v_spaces' not found

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• Build date: 2023/7/30
• R version: 4.2.0
• R Studio version: 2023.06.1 Build 524
• Problem:
  • source code: 06-operation.Rmd knitr:::v_spaces(c(1, 3, 6, 0))
  • package: knitr 1.43
  • what's diff: method v_spaces has been removed in v1.41.
  • build log:

...
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697/850 [unnamed-chunk-221]                 

Quitting from lines 7917-7918 [unnamed-chunk-221] (rmarkdown-guide.Rmd)
Error:
! object 'v_spaces' not found
Warning message:
In system2("python3", c("-c", shQuote(code)), stdout = TRUE) :
  running command '"python3" -c "print(1 + 1)"' had status 9009
Execution halted
Error: bookdown::render_book() failed to render the output format 'bookdown::gitbook'.
Execution halted
Error: Failed to compile the book to all
Execution halted
Error in render_book_script(output_format, envir, quiet) : 
  Error 1 attempting to render book
Calls: <Anonymous> -> <Anonymous> -> in_dir -> render_book_script
Execution halted

Exited with status 1.

• Possible solution:
  use strrep(' ', c(1,3,6,0)) instead.

• Chinese summary 简中梗概：

由于v_spaces函数已被废弃，章节 6.4.2 向源代码中添加行号 编译失败。通过查 knitr 源码变更 可知，使用strrep函数是knitr作者的选择。strrep(' ', c(1,3,6,0))的编译结果与原文效果一致。

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