ruby-on-rails – Capistrano :: Configuration：Class的未定义

我试图在一个rails应用程序中首次获得Capistrano的运行.我有一个 linux服务器运行Ubuntu 12.04,nginx,独角兽和rails,但是,我似乎正在遇到一些问题.我也使用Capistrano 3.0.0,rails 3.2.14,bundler 1.4.0&红宝石1.9.3p448使用RVM.

我只有一个生产阶段设置,在这个时间点,我只关心Capistrano与我的服务器通信,并推送我的代码从github(没有迁移和捆绑等).

当我尝试命令帽生产部署：检查或cap生产部署：安装程序(似乎已被弃用？)与下面的设置,我得到以下错误msg：

我不太确定从哪里开始出现这个错误,而谷歌并不建议太多.我已经尝试添加rvm-capistrano宝石,但没有用.如何修改我的代码来解决这个错误？

cap aborted!
undefined method `instance' for Capistrano::Configuration:Class
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/bundler-1.4.0.rc.1/lib/bundler/capistrano.rb:11:in `<top (required)>'
config/deploy.rb:1:in `<top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/setup.rb:12:in `load'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/setup.rb:12:in `block (2 levels) in <top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/application.rb:12:in `run'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/bin/cap:3:in `<top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/bin/cap:23:in `load'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/bin/cap:23:in `<main>'
Tasks: TOP => production
(See full trace by running task with --trace)

deploy.rb

require "bundler/capistrano"

set :stages,%w(staging production)
set :default_stage,"production"

set :application,"my_app"
set :user,"andrew"
set :scm,"git"
set :repository,"https://github.com/my_repo/#{application}"
set :branch,"master"

set :deploy_to,"/home/rails/#{application}"
set :deploy_via,:remote_cache
set :use_sudo,false

default_run_options[:pty] = true
ssh_options[:forward_agent] = true

after "deploy","deploy:cleanup" # keep only the last 5 releases

namespace :deploy do
  task :restart,roles: :app do
      run "touch #{current_path}tmp/restart.txt"
    end
  end
  after :finishing,'deploy:cleanup'

部署/ production.rb

#Real IP ommitted 
server "10.2.32.68",:web,:app,:db,primary: true

Capfile

# Load DSL and Setup Up Stages
require 'capistrano/setup'

# Includes default deployment tasks
require 'capistrano/deploy'

# require 'capistrano/rvm'
# require 'capistrano/rbenv'
# require 'capistrano/chruby'
# require 'capistrano/bundler'
# require 'capistrano/rails/assets'
# require 'capistrano/rails/migrations'

# Loads custom tasks from `lib/capistrano/tasks' if you have any defined.
Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }

编辑在对捆绑机中capistrano.rb的违规行进行查看后,它提到要对deploy.rb添加require’bundler / deployment’,这似乎摆脱了capistrano实例的错误.

注意降级到capistrano 2.15.5,摆脱了错误.

1. Uncomment require 'capistrano/bundler' from capify. 
 2. add gem 'capistrano-bundler' to your gemfile.
 3. Go through the comments in capify file and uncomment whichever module you require.