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

Something that came up for me that is not addressed here yet. I got this error after going to a new system on which I installed Ruby 2.0.x.

It turns out that even if I was using the new bcrypt 3.1.7 it didn't work for me until I ALSO had bcrypt-ruby 3.0.1 in the gemfile. I resisted that when I should have just taken the error at it's word.

gems:

bcrypt (3.1.7 ruby x86-mingw32)
bcrypt-ruby (3.0.1 x86-mingw32, 3.0.0)

gemfile:

gem 'bcrypt-ruby', '~> 3.0.1'
gem 'bcrypt', '~> 3.1.7'

Before adding both I tried all sorts of single version combinations.