rlsaj rlsaj - 1 year ago 126
Ruby Question

Rails cannot load such file -- bcrypt

My app loads locally but any interaction throws an error:

Started GET "/users/sign_in" for at 2016-11-22 15:42:14 +1100
ActiveRecord::SchemaMigration Load (1.0ms) SELECT "schema_migrations".* FROM
Processing by Users::SessionsController#new as HTML
Rendering users/sessions/new.html.erb within layouts/application
Rendered users/sessions/new.html.erb within layouts/application (37.0ms)
Rendered layouts/_navbar.html.erb (1.0ms)
Completed 200 OK in 1007ms (Views: 978.5ms | ActiveRecord: 4.0ms)

Started POST "/users/sign_in" for at 2016-11-22 15:42:29 +1100
Completed 401 Unauthorized in 8ms (ActiveRecord: 1.0ms)

Processing by Users::SessionsController#new as HTML
Parameters: {"utf8"=>"V",
Completed 500 Internal Server Error in 4ms (ActiveRecord: 0.0ms)

LoadError (cannot load such file -- bcrypt):

app/controllers/users/sessions_controller.rb:6:in `new'
Rendering C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/actionpack-

I am running Windows7 64bit, Ruby23-x64, Rails and the only bcrypt gem I have installed is: bcrypt-3.1.11.

I attempted the solution here: cannot load such file -- 1.9/bcrypt_ext (LoadError) but bcrypt-ruby no longer exists with newer versions of ruby.

Edit: If I run gem install bcrypt, I get an additional bcrypt gem in: C:\Ruby23-x64\lib\ruby\gems\2.3.0\gems. I now have 2 bcrypts:

  • C:\Ruby23-x64\lib\ruby\gems\2.3.0\gems\bcrypt-3.1.11

  • C:\Ruby23-x64\lib\ruby\gems\2.3.0\gems\bcrypt-3.1.11-x64-mingw32

Which one do I keep, and what do I need to change in my Gemfile?

What am I missing?

Answer Source

You put this gem 'bcrypt' into your Gemfile.

If you put it and ran bundle install, did you restart your rails server ?

If you still had this problem, you can do this as follow:

  • Firstly uninstall bcrypt and bcrypt-ruby by running these two commands:

    gem uninstall bcrypt and gem uninstall bcrypt-ruby

  • Install it again with gem install bcrypt --platform=ruby

  • In your Gemfile write gem 'bcrypt-ruby', '3.1.5', :require => 'bcrypt'

  • Then run bundle install and restart your rail server

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