Ruby错误'require'：无法加载此类文件-bcrypt_ext（LoadError）

Question

I can't seem to get my ruby project running everytime I run it this error pops up

C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bcrypt-3.1.7-x86-mingw32/li
b/bcrypt.rb:16:in `require': cannot load such file -- bcrypt_ext (LoadError)
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bcrypt-3.1.7-x
86-mingw32/lib/bcrypt.rb:16:in `rescue in <top (required)>'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bcrypt-3.1.7-x
86-mingw32/lib/bcrypt.rb:12:in `<top (required)>'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:76:in `require'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:72:in `each'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:72:in `block in require'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:61:in `each'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler/runtime.rb:61:in `require'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.7.7/
lib/bundler.rb:133:in `require'
        from C:/Projects/Mailbox/mailboxer-app/config/application.rb:14:in `<top
 (required)>'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands/commands_tasks.rb:79:in `require'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands/commands_tasks.rb:79:in `block in server'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands/commands_tasks.rb:76:in `tap'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands/commands_tasks.rb:76:in `server'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
        from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.1.4
/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

please help.

Answer 1

I fixed this following these steps:

1. gem uninstall bcrypt-ruby
2. gem uninstall bcrypt
3. gem install bcrypt --platform=ruby
4. Then add gem 'bcrypt', platforms: :ruby to your Gemfile

I hope it helps :)

Answer 2

Add

gem 'bcrypt-ruby' 

to your Gemfile and run

bundle install