Capistrano::Configuration:Class 在“cap deploy:setup”上的未定义方法“instance”

Question

$ bundle exec cap deploy:setup
/Users/development/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/gems/2.0.0/gems/sshkit-1.1.0/lib/sshkit.rb:3: 
  warning: already initialized constant SSHKit::StandardError
/Users/development/.rvm/gems/ruby-2.0.0-p247@global/gems/sshkit-1.1.0/lib/sshkit.rb:3: 
  warning: previous definition of StandardError was here

cap aborted!
undefined method `instance' for Capistrano::Configuration:Class
/Users/development/.rvm/gems/ruby-2.0.0-p247@global/gems/railsless-deploy-1.1.2/lib/railsless-deploy.rb:1:in `<top (required)>'
/Users/development/Sites/singapore/Capfile:1:in `require'
/Users/development/Sites/singapore/Capfile:1:in `<top (required)>'
/Users/development/.rvm/gems/ruby-2.0.0-p247@global/gems/capistrano-3.0.0/lib/capistrano/application.rb:22:in `load_rakefile'
/Users/development/.rvm/gems/ruby-2.0.0-p247@global/gems/capistrano-3.0.0/lib/capistrano/application.rb:12:in `run'
/Users/development/.rvm/gems/ruby-2.0.0-p247@global/gems/capistrano-3.0.0/bin/cap:3:in `<top (required)>'

我对 capistrano 还很陌生，但过去曾成功使用过它，没有遇到这么多问题。有谁知道解决这个问题？

Answer 1

我对 capistrano 还很陌生，但过去曾成功使用过它，没有遇到这么多问题。有谁知道这个问题的解决办法吗？

我猜你需要继续使用第 2 版，修改 Gemfile 中的行，改为：

gem "capistrano", "~> 2.15.0"

Answer 2

我遇到了同样的问题，但我必须执行几个步骤才能使其正常工作。首先卸载 Capistrano 的所有现有版本（如果您有多个版本，请删除所有版本）

sudo gem uninstall Capistrano

然后使用上面给出的文本将Gemfile 添加到您的存储库中

gem "capistrano", "~> 2.15.0"

确保您已安装 bundle

sudo gem install bundler

终于安装了

sudo bundle install