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Fixing missing TeX issue in OS X 10.11 El Capitan

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If you are running RStudio Desktop in OS X El Capitan, you may see issues when trying to create PDFs or other files using TeX where RStudio and R are unable to find your TeX installation.

This is because of an issue between OS X and MacTeX, where OS X no longer allows programs to link to the /usr/ directory.

To fix this, you should update to MacTeX 2015 available here. This will add new links to your system which should again allow RStudio to correctly find TeX.

Let us know on the support forums if you have any questions about this.

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    Jeff Carter
    I had a similar issue using knitr to create PDFs, even with a fresh install of MacTeX and follwing the instructions here: https://tug.org/mactex/elcapitan.html Ultimately, a reinstall of R Studio (same version) after the install of MacTeX made everything click.