Work around failed too :/

[Donald Ziesig]

First workaround was to add

gem 'erubis'

to Gemfile, then bundle install.

rails s gives:

There was an error while trying to load the gem 'hobo'. (Bundler::GemRequireError)
Gem Load Error is: undefined method `before_filter' for ActionController::Base:Class
Did you mean?  before_action

from Google

As we can see in ActionController::Base, before_action is just a new syntax for before_filter.

However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1

Don