TwitteR setup_twitter_oauth() failing

Question

I was following the vignette for the package, updated and loaded all necessary packages, seemed like it would be a pretty straight-forward process to authenticate. Instead,

Answer 1

The problem for me was that my curl was out-of-date, so it wasn't able to verify the SSL certificate it was receiving. All I had to do is update curl (simply conda update curl if you're using anaconda) and oauth worked perfectly after that.