Rmarkdown: Pandoc: PDFlatex Not Found

rmarkdown: pandoc: pdflatex not found

This answer on TexExchange might help.

I found I was having issues with pdflatex "missing" after I upgraded to OS X Mavericks (e.g. when checking package builds in RStudio I was getting an error tools::texi2pdf pdflatex missing message).

1. Check that /usr/texbin exists.
   
   In terminal:

   cd /usr/texbin
   

2. If "No such file or directory" then you will need to create a symbolic link to your installation's texbin. Mine was in /Library/TeX/Distributions/.DefaultTeX/Contents/Programs/texbin
   In terminal:

   ln -s /Library/TeX/Distributions/.DefaultTeX/Contents/Programs/texbin /usr/texbin
   

3. In terminal, check the result of echo $PATH. Make sure that /usr/texbin is present. If it isn't present, then you need to add /usr/texbin to your PATH variable.

If you find yourself having to mess with the PATH variable, installing the latest version of MacTex might be a better solution.

UPDATE: OS X 10.11 El Capitan no longer allows writes to /usr so the latest version of MacTeX (2015) now writes a link to /Library/TeX/texbin instead of /usr/texbin on this system.

pandoc via launchd -- getting error: pdflatex not found. pdflatex is needed for pdf output

The solution was to add the path for pdflatex to the bash script, as follows:

#!/bin/bash
PATH=$PATH:/usr/texbin
/usr/local/bin/pandoc -o /Users/Jon/dev/intercontinental/ddd.pdf /Users/Jon/dev/intercontinental/ddd.ddd

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