To get this running on my rails5 app I also had to run ``` rails action_text:install ``` it gives you the first two migrations seen [in the example code here](https://github.com/driftingruby/167-using-actiontext-in-a-rails-5-2-application/tree/master/db/migrate) , and runs ``` yarn add https://github.com/kobaltz/actiontext from "." ```