capistrano-3 cap部署错误：设置

Question

我运行cap deploy时出现以下错误：setup。

ayank@vahuradev:~/dev/SandBox$ cap deploy:setup 
cap aborted! 
wrong number of arguments (5 for 1..2) 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/lib/capistrano/dsl/env.rb:38:in `server' 
config/deploy.rb:16:in `<top (required)>' 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/lib/capistrano/setup.rb:14:in `load' 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/lib/capistrano/setup.rb:14:in `block (2 levels) in <top (required)>' 
/home/mayank/dev/SandBox/Capfile:26:in `<top (required)>' 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/lib/capistrano/application.rb:24:in `load_rakefile' 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/lib/capistrano/application.rb:15:in `run' 
/home/mayank/.rvm/gems/ruby-2.1.0/gems/capistrano-3.1.0/bin/cap:3:in `<top (required)>' 
/home/mayank/.rvm/gems/ruby-2.1.0/bin/cap:23:in `load' 
/home/mayank/.rvm/gems/ruby-2.1.0/bin/cap:23:in `<main>' 
/home/mayank/.rvm/gems/ruby-2.1.0/bin/ruby_executable_hooks:15:in `eval' 
/home/mayank/.rvm/gems/ruby-2.1.0/bin/ruby_executable_hooks:15:in `<main>' 
Tasks: TOP => production 
(See full trace by running task with --trace) 

我deploy.rb文件如下：

#require 'bundler/capistrano' 

set :application, "SandBox" 
set :repository, "repo address" => this is correct 
set :deploy_to, "/home/vahuadmin/SandBox" 
set :scm, :git 
set :branch, "master" 
set :user, "mayank " 
set :group, "deployers" 
set :use_sudo, false 
set :rails_env, "production" 
set :deploy_via, :copy 
set :ssh_options, { :forward_agent => true, :port => 4321 } 
set :keep_releases, 5 
default_run_options[:pty] = true 
server "xxx.xx.xx.xx", :app, :web, :db, :primary => true 
server "xxx.xx.xx.xx", roles: [:app, :web, :db], :primary => true 
namespace :deploy do 
    task :start do ; end 
    task :stop do ; end 

    desc "Symlink shared config files" 
    task :symlink_config_files do 
    run "#{ sudo } ln -s #{ deploy_to }/shared/config/database.yml #{ current_path }/config/database.yml" 
    end 

    # NOTE: I don't use this anymore, but this is how I used to do it. 
    desc "Precompile assets after deploy" 
    task :precompile_assets do 
    run <<-CMD 
     cd #{ current_path } && 
     #{ sudo } bundle exec rake assets:precompile RAILS_ENV=#{ rails_env } 
    CMD 
    end 

    desc "Restart applicaiton" 
    task :restart do 
    run "#{ try_sudo } touch #{ File.join(current_path, 'tmp', 'restart.txt') }" 
    end 
end 

after "deploy", "deploy:symlink_config_files" 
after "deploy", "deploy:restart" 
after "deploy", "deploy:cleanup" 

宝石包括>>>

gem 'capistrano', '~> 3.1.0' 

# rails specific capistrano funcitons 
gem 'capistrano-rails', '~> 1.1.0' 

# integrate bundler with capistrano 
gem 'capistrano-bundler' 

# if you are using RBENV 
gem 'capistrano-rbenv', "~> 2.0" 

知道为什么这个错误以及如何解决这个..请帮忙！！

Answer 1

线server "xxx.xx.xx.xx", :app, :web, :db, :primary => true应该是

server "xxx.xx.xx.xx", :roles => [:app, :web, :db], :primary => true 

你传入在5个参数，并将其只允许1或2;服务器名称和可选的选项散列。