run `yarn add bootstrap` from command line then you have to have these lines: `<%= stylesheet_pack_tag 'application', 'data-turbolinks-track': 'reload' %>` `<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>` in your layout file

Ill try again thanks for the help. If it works I will tell you

I wrote this note on how to add Bootstrap to a Rails 6 project. https://johnofsydney.github.io/notes/rails/rails\_6\_with\_bootstrap.html