Rspec: Could not find generator 'rspec:install'. Maybe you meant 'assets', 'channel' or 'scaffold'

⏹️ Introduction rspec-rails brings the RSpec testing framework to Ruby on Rails as a drop-in alternative to its default testing framework, Minitest. Rspec looks a lot like plain English. ⏹️ What's the error message? Could not find generator 'rspec:i...