Rails: Before process_action callback :authenticate_user! has not been defined
问题 I'm creating a rails app that includes devise. I'm trying to add Twilio messaging to my site with Ngrok, i used this tutorial: https://www.twilio.com/blog/2016/04/receive-and-reply-to-sms-in-rails.html I was able to open Ngrok in the console and get the web-id they give for my url. I keep getting this error when I plug the url into my browser ..I'm supposed to get to my own rails local app. Not sure whats wrong. What I added in my messaging controller made for ngrok: class MessagesController