嘗試創建新的導軌應用程序時出現錯誤

Question

當我試圖通過使用rails new recaptcha命令創建新的導軌應用程序時，則出現以下錯誤。

john@john-OptiPlex-390:~/proj$ rails new recaptcha 
/home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/specification.rb:2274:in `check_version_conflict': can't activate activesupport-5.0.6, already activated activesupport-5.0.4 (Gem::LoadError) 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/specification.rb:1403:in `activate' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:89:in `block in require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:88:in `each' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:88:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/concurrent-ruby-1.0.5/lib/concurrent.rb:15:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/activesupport-5.0.4/lib/active_support/logger_silence.rb:3:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/activesupport-5.0.4/lib/active_support/logger.rb:1:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/activesupport-5.0.4/lib/active_support.rb:27:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/railties-5.0.4/lib/rails/generators.rb:6:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/railties-5.0.4/lib/rails/commands/application.rb:1:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/railties-5.0.4/lib/rails/cli.rb:14:in `<top (required)>' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/john/.rvm/gems/ruby-2.3.1/gems/railties-5.0.4/exe/rails:9:in `<top (required)>' 
    from /home/john/.rvm/gems/ruby-2.3.1/bin/rails:23:in `load' 
    from /home/john/.rvm/gems/ruby-2.3.1/bin/rails:23:in `<main>' 
    from /home/john/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval' 
    from /home/john/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `<main>' 
john@john-OptiPlex-390:~/proj$ 

有人可以幫我解決這個問題。

Answer 1

您有多個版本的activesupport。您應該刪除其中的一個：

$ gem list | grep activesupport 

Activesupport (5.1.1, 5.0.4, 5.0.3, 5.0.2, 5.0.0.1, 4.2.6, 4.2.5, 4.2.4, 4.2.1, 4.1.6) 

然後

$ gem uninstall activesupport -v 5.1.1 

Successfully uninstalled activesupport-5.1.1 

在你的情況，我想這是activesupport-5.0.6

Answer 2

看來命令試圖在創建應用程序加載多個電源軌的依賴。

您可以通過

$ gem update rails 

或者

$ gem update --system 

Answer 3

解決這個你可以使用

bundle install --pre 

然後

gem update rails 

謝謝