尝试使用Rails 4应用程序的文档将其部署到WebFaction并在本地获取错误

Question

我试图通过Capistrano 2.15.5通过github将Rails 4应用程序部署到Webfaction。 最初，我安装了Capistrano 3并出现错误，因此最终我安装了Capistrano 2.15.5，并在此处遵循了webfaction的文档：

我与webfaction进行了交谈，他们建议我尝试使用较旧的Cap 2版本，因为这是他们所熟悉的，并且暂时不会更新Capistrano 3的文档。

我在他们的教程中完成了所有适当的步骤，并且在尝试运行“ cap deploy：setup”或“ cap deploy：check”等时遇到很多错误。

pastebin中的错误， 在这里 ：（如下所示）

/Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:152:in `require': cannot load such file -- capistrano/setup (LoadError)
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:152:in `require'
    from Capfile:6:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:93:in `instance_eval'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:93:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:180:in `load_from_file'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:89:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `block in load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `each'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `block in load_recipes'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `each'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `load_recipes'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:31:in `execute!'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:14:in `execute'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/bin/cap:4:in `<top (required)>'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/cap:23:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/cap:23:in `<main>'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `eval'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `<main>' 
galactica% cap deploy:check
/Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:152:in `require': cannot load such file -- capistrano/setup (LoadError)
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:152:in `require'
    from Capfile:6:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:93:in `instance_eval'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:93:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:180:in `load_from_file'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:89:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `block in load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `each'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/configuration/loading.rb:86:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `block in load_recipes'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `each'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:65:in `load_recipes'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:31:in `execute!'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/lib/capistrano/cli/execute.rb:14:in `execute'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-2.15.5/bin/cap:4:in `<top (required)>'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/cap:23:in `load'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/cap:23:in `<main>'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `eval'
    from /Users/aronoff/.rvm/gems/ruby-2.0.0-p247/bin/ruby_executable_hooks:15:in `<main>'

我尝试查看文件，但是我不确定是什么问题，而且我不知道是否有足够的红宝石来进行故障排除。 我希望你能帮助我。

任何帮助将不胜感激和吉比特！ :)

先感谢您！ 〜乔什

Answer 1

我猜测您是使用Capistrano 3设置项目的配置的，而我认为Capistrano 2的设置是不同的。

我对这些差异不太熟悉，但是您遇到的错误是cannot load such file -- capistrano/setup ，有关capistrano 3参考的这篇文章 require 'capistrano/setup' ，因为在capistrano 3生成的Capfile中。

因此，我猜测capistrano 2不存在该文件。我不知道capistrano 2是否具有可运行的生成器并让它们覆盖您拥有的文件，但是如果存在，请尝试这样做吗？

还是尝试取出那条线，看看是否有其他错误？ 还是还原您开始设置capistrano 3的提交，并完全使用capistrano 2重新开始配置过程？

Answer 2

您是否在ruby v2.0下使用“ gem install”安装了Capistrano 2？

rvm 2.0.0 gem install capistrano“您的版本”

请先尝试...。

Answer 3

我在使用第2.15.5章部署Rails 4应用程序时遇到了相同的错误。 我进行了研究，发现问题出在我从第3章切换到第2章的语法上。因此，如果您使用第v2版，则仅在capfile中使用load命令，而在deploy.rb中仅使用Require命令。 因此，如果您从3切换到2，请记住语法，因为cap v2和cap v3之间有很多变化。

注意 ：要部署Rails 4应用程序2.15.5是可以使用的稳定的capistrano版本。 这是对我有用的指南链接：https： //gist.github.com/brobertsaz/8660415