有个 rails 工程（redmine2.3），rails3.2 的 启动就报错

启动命令

bundle exec thin start -p 8080 -e production -s 5 -d

错误信息

(eval):9: warning: already initialized constant Bundler::Dsl::RAILS_VERSION_IS_3
(eval):9: warning: previous definition of RAILS_VERSION_IS_3 was here
(eval):9: warning: already initialized constant Bundler::Dsl::RAILS_VERSION_IS_3
(eval):9: warning: previous definition of RAILS_VERSION_IS_3 was here
Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
/var/wtn/vendor/cache/ruby/2.0.0/gems/eventmachine-1.0.3/lib/eventmachine.rb:8:in `require': libruby.so.2.0: cannot open shared object file: No such file or directory - /var/wtn/vendor/cache/ruby/2.0.0/gems/eventmachine-1.0.3/lib/rubyeventmachine.so (LoadError)
    from /var/wtn/vendor/cache/ruby/2.0.0/gems/eventmachine-1.0.3/lib/eventmachine.rb:8:in `<top (required)>'
    from /var/wtn/vendor/cache/ruby/2.0.0/gems/thin-1.6.2/lib/thin.rb:7:in `require'
    from /var/wtn/vendor/cache/ruby/2.0.0/gems/thin-1.6.2/lib/thin.rb:7:in `<top (required)>'
    from /var/wtn/vendor/cache/ruby/2.0.0/gems/thin-1.6.2/bin/thin:5:in `require'
    from /var/wtn/vendor/cache/ruby/2.0.0/gems/thin-1.6.2/bin/thin:5:in `<top (required)>'
    from /var/wtn/vendor/cache/ruby/2.0.0/bin/thin:23:in `load'
    from /var/wtn/vendor/cache/ruby/2.0.0/bin/thin:23:in `<main>'

###重点

看上去似乎是有另一个 rails？

然后输入

rails -v

居然也报同样的信息

rails -v
(eval):9: warning: already initialized constant Bundler::Dsl::RAILS_VERSION_IS_3
(eval):9: warning: previous definition of RAILS_VERSION_IS_3 was here

在工程目录下 bundle exec ... 也是报上面的错误。

其他信息：

$ bundle env
Bundler 1.3.5
Ruby 2.0.0 (2013-06-27 patchlevel 247) [x86_64-linux]
Rubygems 2.0.6
GEM_HOME

Bundler settings
  without
    Set for your local app (/var/wtn/.bundle/config): "test:rmagick"
  path
    Set for your local app (/var/wtn/.bundle/config): "vendor/cache"
  disable_shared_gems
    Set for your local app (/var/wtn/.bundle/config): "1"


Gemfile
source 'http://ruby.taobao.org'

gem "rails", "3.2.13"
gem "jquery-rails", "~> 2.0.2"
gem "i18n", "~> 0.6.0"
gem "coderay", "~> 1.0.6"
gem "fastercsv", "~> 1.5.0", :platforms => [:mri_18, :mingw_18, :jruby]
gem "builder", "3.0.0"
gem "httparty"
gem "thin"

# markdown
# download plugin from https://github.com/alminium/redmine_redcarpet_formatter
# git clone git://github.com/alminium/redmine_redcarpet_formatter.git
# then select 'markdown' in admin settings => text format
gem "redcarpet"

# Optional gem for LDAP authentication
group :ldap do
  gem "net-ldap", "~> 0.3.1"
end

# Optional gem for OpenID authentication
group :openid do
  gem "ruby-openid", "~> 2.1.4", :require => "openid"
  gem "rack-openid"
end

# Optional gem for exporting the gantt to a PNG file, not supported with jruby
#platforms :mri, :mingw do
#  group :rmagick do
    # RMagick 2 supports ruby 1.9
    # RMagick 1 would be fine for ruby 1.8 but Bundler does not support
    # different requirements for the same gem on different platforms
#    gem "rmagick", ">= 2.0.0"
#  end
#end

platforms :jruby do
  # jruby-openssl is bundled with JRuby 1.7.0
  gem "jruby-openssl" if Object.const_defined?(:JRUBY_VERSION) && JRUBY_VERSION < '1.7.0'
  gem "activerecord-jdbc-adapter", "1.2.5"
end

# Include database gems for the adapters found in the database
# configuration file
require 'erb'
require 'yaml'
database_file = File.join(File.dirname(__FILE__), "config/database.yml")
if File.exist?(database_file)
  database_config = YAML::load(ERB.new(IO.read(database_file)).result)
  adapters = database_config.values.map {|c| c['adapter']}.compact.uniq
  if adapters.any?
    adapters.each do |adapter|
      case adapter
      when 'mysql2'
        gem "mysql2", "~> 0.3.11", :platforms => [:mri, :mingw]
        gem "activerecord-jdbcmysql-adapter", :platforms => :jruby
      when 'mysql'
        gem "mysql", "~> 2.8.1", :platforms => [:mri, :mingw]
        gem "activerecord-jdbcmysql-adapter", :platforms => :jruby
      when /postgresql/
        gem "pg", ">= 0.11.0", :platforms => [:mri, :mingw]
        gem "activerecord-jdbcpostgresql-adapter", :platforms => :jruby
      when /sqlite3/
        gem "sqlite3", :platforms => [:mri, :mingw]
        gem "activerecord-jdbcsqlite3-adapter", :platforms => :jruby
      when /sqlserver/
        gem "tiny_tds", "~> 0.5.1", :platforms => [:mri, :mingw]
        gem "activerecord-sqlserver-adapter", :platforms => [:mri, :mingw]
      else
        warn("Unknown database adapter `#{adapter}` found in config/database.yml, use Gemfile.local to load your own database gems")
      end
    end
  else
    warn("No adapter found in config/database.yml, please configure it first")
  end
else
  warn("Please configure your config/database.yml first")
end

group :development do
  gem "rdoc", ">= 2.4.2"
  gem "yard"
end

group :test do
  gem "shoulda", "~> 3.3.2"
  gem "mocha", "~> 0.13.3"
  gem 'capybara', '~> 2.0.0'
end

local_gemfile = File.join(File.dirname(__FILE__), "Gemfile.local")
if File.exists?(local_gemfile)
  puts "Loading Gemfile.local ..." if $DEBUG # `ruby -d` or `bundle -v`
  instance_eval File.read(local_gemfile)
end

# Load plugins' Gemfiles
Dir.glob File.expand_path("../plugins/*/Gemfile", __FILE__) do |file|
  puts "Loading #{file} ..." if $DEBUG # `ruby -d` or `bundle -v`
  instance_eval File.read(file)
end


Gemfile.lock
GEM
  remote: http://ruby.taobao.org/
  remote: https://rubygems.org/
  remote: https://rubygems.org/
  specs:
    ZenTest (4.5.0)
    actionmailer (3.2.13)
      actionpack (= 3.2.13)
      mail (~> 2.5.3)
    actionpack (3.2.13)
      activemodel (= 3.2.13)
      activesupport (= 3.2.13)
      builder (~> 3.0.0)
      erubis (~> 2.7.0)
      journey (~> 1.0.4)
      rack (~> 1.4.5)
      rack-cache (~> 1.2)
      rack-test (~> 0.6.1)
      sprockets (~> 2.2.1)
    activemodel (3.2.13)
      activesupport (= 3.2.13)
      builder (~> 3.0.0)
    activerecord (3.2.13)
      activemodel (= 3.2.13)
      activesupport (= 3.2.13)
      arel (~> 3.0.2)
      tzinfo (~> 0.3.29)
    activeresource (3.2.13)
      activemodel (= 3.2.13)
      activesupport (= 3.2.13)
    activesupport (3.2.13)
      i18n (= 0.6.1)
      multi_json (~> 1.0)
    arel (3.0.3)
    autotest-rails (4.2.1)
      ZenTest (~> 4.5)
    builder (3.0.0)
    capybara (2.0.3)
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      selenium-webdriver (~> 2.0)
      xpath (~> 1.0.0)
    childprocess (0.5.3)
      ffi (~> 1.0, >= 1.0.11)
    chronic (0.10.2)
    coderay (1.0.9)
    cucumber (1.3.16)
      builder (>= 2.1.2)
      diff-lcs (>= 1.1.3)
      gherkin (~> 2.12)
      multi_json (>= 1.7.5, < 2.0)
      multi_test (>= 0.1.1)
    cucumber-rails (1.4.1)
      capybara (>= 1.1.2, < 3)
      cucumber (>= 1.3.8, < 2)
      mime-types (~> 1.16)
      nokogiri (~> 1.5)
      rails (>= 3, < 5)
    culerity (0.2.15)
    daemons (1.1.9)
    database_cleaner (1.3.0)
    diff-lcs (1.1.3)
    docile (1.1.5)
    erubis (2.7.0)
    eventmachine (1.0.3)
    fastercsv (1.5.5)
    faye-websocket (0.4.7)
      eventmachine (>= 0.12.0)
    ffi (1.9.3)
    gherkin (2.12.2)
      multi_json (~> 1.3)
    hike (1.2.3)
    holidays (1.0.6)
    http_parser.rb (0.5.3)
    httparty (0.11.0)
      json (~> 1.8)
      multi_xml (>= 0.5.2)
    i18n (0.6.1)
    icalendar (2.1.1)
    inifile (3.0.0)
    journey (1.0.4)
    jquery-rails (2.0.3)
      railties (>= 3.1.0, < 5.0)
      thor (~> 0.14)
    json (1.8.1)
    mail (2.5.4)
      mime-types (~> 1.16)
      treetop (~> 1.4.8)
    metaclass (0.0.4)
    mime-types (1.25.1)
    mocha (0.13.3)
      metaclass (~> 0.0.1)
    multi_json (1.10.1)
    multi_test (0.1.1)
    multi_xml (0.5.5)
    mysql2 (0.3.16)
    net-ldap (0.3.1)
    nokogiri (1.5.11)
    open-uri-cached (0.0.5)
    pdf-core (0.2.5)
    poltergeist (1.1.2)
      capybara (~> 2.0.1)
      faye-websocket (~> 0.4.4)
      http_parser.rb (~> 0.5.3)
    polyglot (0.3.5)
    prawn (1.2.1)
      pdf-core (~> 0.2.5)
      ttfunk (~> 1.2.0)
    rack (1.4.5)
    rack-cache (1.2)
      rack (>= 0.4)
    rack-openid (1.4.2)
      rack (>= 1.1.0)
      ruby-openid (>= 2.1.8)
    rack-ssl (1.3.4)
      rack
    rack-test (0.6.2)
      rack (>= 1.0)
    rails (3.2.13)
      actionmailer (= 3.2.13)
      actionpack (= 3.2.13)
      activerecord (= 3.2.13)
      activeresource (= 3.2.13)
      activesupport (= 3.2.13)
      bundler (~> 1.0)
      railties (= 3.2.13)
    railties (3.2.13)
      actionpack (= 3.2.13)
      activesupport (= 3.2.13)
      rack-ssl (~> 1.3.2)
      rake (>= 0.8.7)
      rdoc (~> 3.4)
      thor (>= 0.14.6, < 2.0)
    rake (10.3.2)
    rdoc (3.12.2)
      json (~> 1.4)
    redcarpet (3.1.2)
    rspec (2.11.0)
      rspec-core (~> 2.11.0)
      rspec-expectations (~> 2.11.0)
      rspec-mocks (~> 2.11.0)
    rspec-core (2.11.1)
    rspec-expectations (2.11.3)
      diff-lcs (~> 1.1.3)
    rspec-mocks (2.11.3)
    rspec-rails (2.11.4)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec (~> 2.11.0)
    ruby-openid (2.1.8)
    ruby-prof (0.15.1)
    rubyzip (1.1.6)
    selenium-webdriver (2.42.0)
      childprocess (>= 0.5.0)
      multi_json (~> 1.0)
      rubyzip (~> 1.0)
      websocket (~> 1.0.4)
    shoulda (3.3.2)
      shoulda-context (~> 1.0.1)
      shoulda-matchers (~> 1.4.1)
    shoulda-context (1.0.2)
    shoulda-matchers (1.4.1)
      activesupport (>= 3.0.0)
    simplecov (0.9.0)
      docile (~> 1.1.0)
      multi_json
      simplecov-html (~> 0.8.0)
    simplecov-html (0.8.0)
    spork (0.9.2)
    sprockets (2.2.2)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    thin (1.6.2)
      daemons (>= 1.0.9)
      eventmachine (>= 1.0.0)
      rack (>= 1.0.0)
    thor (0.19.1)
    tilt (1.4.1)
    timecop (0.3.5)
    treetop (1.4.15)
      polyglot
      polyglot (>= 0.3.1)
    ttfunk (1.2.0)
    tzinfo (0.3.41)
    websocket (1.0.7)
    xpath (1.0.0)
      nokogiri (~> 1.3)
    yard (0.8.7.4)

PLATFORMS
  ruby

DEPENDENCIES
  ZenTest (= 4.5.0)
  activerecord-jdbc-adapter (= 1.2.5)
  activerecord-jdbcmysql-adapter
  autotest-rails
  builder (= 3.0.0)
  capybara (~> 2.0.0)
  chronic
  coderay (~> 1.0.6)
  cucumber-rails
  culerity
  database_cleaner
  fastercsv (~> 1.5.0)
  faye-websocket (~> 0.4.7)
  gherkin (~> 2.6)
  holidays (~> 1.0.3)
  httparty
  i18n (~> 0.6.0)
  icalendar
  inifile
  jquery-rails (~> 2.0.2)
  json
  mocha (~> 0.13.3)
  mysql2 (~> 0.3.11)
  net-ldap (~> 0.3.1)
  nokogiri (< 1.6.0)
  open-uri-cached
  poltergeist (~> 1.0)
  prawn
  rack-openid
  rails (= 3.2.13)
  rdoc (>= 2.4.2)
  redcarpet
  rspec (~> 2.11.0)
  rspec-rails (~> 2.11.0)
  ruby-openid (~> 2.1.4)
  ruby-prof
  shoulda (~> 3.3.2)
  simplecov (~> 0.6)
  spork
  thin
  timecop (~> 0.3.5)
  yard