Uncaught exception: cannot load such file -- bcrypt

[roberts1000]

I'm not able to run bcrypt-ruby on a Windows 64bit machine (with 64bit Ruby 2.0.0) via the Gemfile. This issue has occurred for a while, at least since Rails 3.2.12+. It is continuing to happen Rails 4.0.2. I have tried adding the following to my Gemfile:

 gem 'bcrypt-ruby', '~> 3.1.2''

and

 gem 'bcrypt-ruby', '~> 3.1.2', :require => 'bcrypt'

When I run bundle install It doesn't appear that bcrypt-ruby is being used. There is no output saying 'Using bcrypt-ruby ...` from bundler.

I've tried installing the gem from the command line via:

 gem install bcrypt-ruby --platform=ruby --no-ri --no-rdoc

and

 gem install bcrypt-ruby

The gem will compile in both cases, however, when I delete Gemfile.lock and run bundle install again, bundler will still not pick up on the gem. If I try and start the rails server in this state, I receive the following error:

 Uncaught exception: cannot load such file -- bcrypt

The only solution that seems to work to add the following to the Gemfile

 gem 'bcrypt-ruby', git: 'https://github.com/codahale/bcrypt-ruby.git', :require => 'bcrypt'

[tmm1]

gem install bcrypt-ruby --platform=ruby

This probably installed the gem without the extension.. try gem uninstall bcrypt-ruby first?

[roberts1000]

I've given that a shot, it doesn't appear to help.

[tjschuck]

@roberts1000 Can you confirm whether or not this is still an issue? Does the following in your Gemfile work?

gem 'bcrypt', '~> 3.1.7'

For the sake of issue management, I'm going to close this until more info is provided. I'll reopen once you respond.

[roberts1000]

@tjschuck 3.1.2 actually started working for me. If you guys didn't work some magic, I believe it had something to do with bundler. I was using an older version of bundler that could not manage gems on 64bit windows (see rubygems/bundler#2658 for more info). I upgraded bundler to fix an issue in another gem and when I tried bcrypt again a couple weeks later it was working as well. I can confirm that 3.1.7 too.

[tjschuck]

Awesome, thanks @roberts1000. 64bit Win support was added in 3.1.2 initially, so I'm glad to hear it was in fact working.

Thanks for posting the upgrade-bundler solution -- hopefully that will help anyone else that finds the issue in the future ❤️