pandoc version 1.12.3 or higher is required and was not found (R shiny)

Question

I have a problem generating a pdf report from my app shiny which is hosted on a server.

the app works fine but when I press the button to download the report, I get

Answer 1

For those not using RStudio, you may just need to install pandoc on your system. For me it was

sudo pacman -S pandoc

and it worked (Arch Linux).