Error Message "latex-engine has been removed" when knitting to pdf

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I'm working on a Mac and have an R script file that I would like to compile to a PDF document. I have inserted the following at the top for the output: 

#'   beamer_presentation:
#'     toc: yes
#'     slide_level: 2
#'     latex_engine: xelatex

Once I press command+shift+k to knit this file, I get the following error message:

--latex-engine has been removed.  Use --pdf-engine instead.
Try pandoc --help for more information.
Error: pandoc document conversion failed with error 2
Execution halted

I did download mactex and pandoc 2.0.1.1. from the pandoc website. Some of my colleages are able to knit the file, so I'm rather sure that the content is not the issue.

pandoc r-markdown knitr r pdf
1 Answers

This issue has been reported and fixed in the current development version of rmarkdown, which you can install with:

if (!require("devtools")) install.packages("devtools")
devtools::install_github("rstudio/rmarkdown")
user_5596760
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