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

If you are trying to run a script from the command line on Windows you just need to have the directory path in the PATH variable*. You can also create a separate User variable named RSTUDIO_PANDOC and give this variable the directory*. Then close and reopen any terminals to refresh the system paths.**

*Experiment with a trailing / if you are having issues. **I was unable to point to a UNC path. The // at the beginning of the path hosed the rmarkdown package pandoc functions. If you are using a UNC path, you must map it to a drive and reference the drive letter. There are ways to do this dynamically. I use a DOS/batch script which I found via Google.