无法加载此类文件-Windows上的bcrypt_ext（LoadError）

Question

我有ruby 2.3.3p222（2016-11-21修订版56859）[x64-mingw32]和rails 5.1.4。 运行rails s命令时出现以下错误。

rails s
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require': cannot load such file -- bcrypt_ext (LoadError)
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `block in require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:258:in `load_dependency'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bcrypt-3.1.11-x64-mingw32/lib/bcrypt.rb:16:in `rescue in <top (required)>'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bcrypt-3.1.11-x64-mingw32/lib/bcrypt.rb:12:in `<top (required)>'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:83:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:83:in `block (2 levels) in require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:78:in `each'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:78:in `block in require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:67:in `each'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler/runtime.rb:67:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.16.0.pre.2/lib/bundler.rb:114:in `require'
        from E:/Rauf Personal Data/work/rails/shine/config/application.rb:7:in `<top (required)>'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:133:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:133:in `block in perform'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `tap'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `perform'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

我几乎尝试了所有解决方案，但无法解决此问题。 谁能帮我解决这个问题。 我已经尝试过以下操作：

首先通过运行以下两个命令来卸载bcrypt和bcrypt-ruby：gem卸载bcrypt和gem卸载bcrypt-ruby使用gem install bcrypt --platform = ruby​​再次安装。在您的Gemfile中，将gem'bcrypt-ruby'，'3.1.5'写入。 ，：require =>'bcrypt'运行软件包安装

Answer 1

我设法通过在Gemfile中添加以下行来解决此问题。...

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

Answer 2

在尝试了几种方法之后，以上方法对我有用：1）停止所有Rails服务器。 2）在gemfile中添加gem'bcrypt'，git：' https : //github.com/codahale/bcrypt-ruby.git '，：require =>'bcrypt'。 3）捆绑安装。