Error stating that “bcrypt-ruby is not part of the bundle”, how can I add bcrypt-ruby to Gemfile?

Question

When I add has_secure_password to the model (inherited from ActiveRecord::Base), error stating that \"bcrypt-ruby is not part of the bundle\" occurs.

Here the log is

Answer 1

As the message says you need to add bcrypt-ruby to your Gemfile (at the root of the project).

Adding

gem "bcrypt-ruby"

and then running bundle install should do the trick (this would fetch the gem if you hadn't already installed it).

You can specify specific versions to, eg

gem "bcrypt-ruby", "~> 3.0.1"

will get you the latest version that is >= to 3.0.1 but less than 3.1. You might do this if 3.0.1 has a bug fix you depend on and you're happy to get more bug fixes but you don't want major changes. There's loads more info on the bundler website.