Error installing PKI package in R

Question

I\'d like to publish a slidify presentation in RPubs but it requires PKI and rsconnect packages.

I\'m having this error message when trying to install PKI package in

Answer 1

On Ubuntu, you need to install libssl-dev in order to install the header files for SSL.:

sudo apt-get install libssl-dev

or via Synaptic.

It's probably a good idea to also install libcurl4-openssl-dev, which last I checked you needed for the related package RCurl.