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ruby-on-rails - AdapterNotSpecified 使用 ClearDB for MySQL 将 Rails 应用程序部署到 Heroku

问题描述

我正在尝试恢复我几年前工作的旧 Rails 应用程序。我在带有 ClearDB 的 Heroku-16 堆栈上使用 ruby​​ 2.3.3 和 rails 3.2.15 用于带有 mysql2 适配器的 MySQL 数据库。当部署到 Heroku 时，它会成功部署，但在尝试启动应用程序时会崩溃。

Heroku 日志中的完整堆栈跟踪（在第一个答案中根据建议修复 activerecord-import gem 版本后更新）：

2021-02-09T04:42:26.851155+00:00 app[web.1]: Connecting to database specified by DATABASE_URL
2021-02-09T04:42:27.370829+00:00 app[web.1]: Exiting
2021-02-09T04:42:30.584256+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/orm/active_record.rb:17:in `<module:ClassMethods>': undefined method `version' for ActiveModel:Module (NoMethodError)
2021-02-09T04:42:30.584311+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/orm/active_record.rb:6:in `<module:ActiveRecord>'
2021-02-09T04:42:30.584336+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/orm/active_record.rb:3:in `<module:ORM>'
2021-02-09T04:42:30.584380+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/orm/active_record.rb:2:in `<module:ValidatesTimeliness>'
2021-02-09T04:42:30.584424+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/orm/active_record.rb:1:in `<top (required)>'
2021-02-09T04:42:30.584467+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
2021-02-09T04:42:30.584499+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `block in require'
2021-02-09T04:42:30.584532+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:236:in `load_dependency'
2021-02-09T04:42:30.584595+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
2021-02-09T04:42:30.584621+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness.rb:59:in `block in load_orms'
2021-02-09T04:42:30.584647+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness.rb:59:in `each'
2021-02-09T04:42:30.584674+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness.rb:59:in `load_orms'
2021-02-09T04:42:30.584701+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/railtie.rb:7:in `block (2 levels) in <class:Railtie>'
2021-02-09T04:42:30.584758+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
2021-02-09T04:42:30.584787+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
2021-02-09T04:42:30.584813+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/lazy_load_hooks.rb:26:in `block in on_load'
2021-02-09T04:42:30.584843+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/lazy_load_hooks.rb:25:in `each'
2021-02-09T04:42:30.584924+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/lazy_load_hooks.rb:25:in `on_load'
2021-02-09T04:42:30.584985+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/validates_timeliness-4.1.1/lib/validates_timeliness/railtie.rb:4:in `block in <class:Railtie>'
2021-02-09T04:42:30.585018+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/initializable.rb:30:in `instance_exec'
2021-02-09T04:42:30.585058+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/initializable.rb:30:in `run'
2021-02-09T04:42:30.585108+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/initializable.rb:55:in `block in run_initializers'
2021-02-09T04:42:30.585158+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/initializable.rb:54:in `each'
2021-02-09T04:42:30.585189+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/initializable.rb:54:in `run_initializers'
2021-02-09T04:42:30.585220+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/application.rb:136:in `initialize!'
2021-02-09T04:42:30.585255+00:00 app[web.1]: from /app/config/environment.rb:6:in `<top (required)>'
2021-02-09T04:42:30.585334+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
2021-02-09T04:42:30.585368+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `block in require'
2021-02-09T04:42:30.585401+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:236:in `load_dependency'
2021-02-09T04:42:30.585432+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
2021-02-09T04:42:30.585511+00:00 app[web.1]: from /app/config.ru:3:in `block in <main>'
2021-02-09T04:42:30.585548+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/builder.rb:51:in `instance_eval'
2021-02-09T04:42:30.585579+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/builder.rb:51:in `initialize'
2021-02-09T04:42:30.585659+00:00 app[web.1]: from /app/config.ru:in `new'
2021-02-09T04:42:30.585692+00:00 app[web.1]: from /app/config.ru:in `<main>'
2021-02-09T04:42:30.585723+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/builder.rb:40:in `eval'
2021-02-09T04:42:30.585764+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/builder.rb:40:in `parse_file'
2021-02-09T04:42:30.585837+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/server.rb:200:in `app'
2021-02-09T04:42:30.585868+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/commands/server.rb:46:in `app'
2021-02-09T04:42:30.585900+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/server.rb:304:in `wrapped_app'
2021-02-09T04:42:30.585930+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/rack-1.4.7/lib/rack/server.rb:254:in `start'
2021-02-09T04:42:30.585977+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/commands/server.rb:70:in `start'
2021-02-09T04:42:30.586026+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/commands.rb:55:in `block in <top (required)>'
2021-02-09T04:42:30.586055+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/commands.rb:50:in `tap'
2021-02-09T04:42:30.586087+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/railties-3.2.22.5/lib/rails/commands.rb:50:in `<top (required)>'
2021-02-09T04:42:30.586120+00:00 app[web.1]: from script/rails:6:in `require'
2021-02-09T04:42:30.588043+00:00 app[web.1]: from script/rails:6:in `<main>'
2021-02-09T04:42:30.758954+00:00 heroku[web.1]: Process exited with status 1
2021-02-09T04:42:30.840167+00:00 heroku[web.1]: State changed from starting to crashed

堆栈跟踪中引用的 environment.rb 中的第 6 行：

Rails.application.initialize!

Heroku 配置变量：

CLEARDB_DATABASE_URL: mysql2://user:pw@us-cdbr-east-03.cleardb.com/db?reconnect=true
DATABASE_URL: mysql2://user:pw@us-cdbr-east-03.cleardb.com/db?reconnect=true
RACK_ENV: production
RAILS_ENV: production
LANG: en_US.UTF-8

来自 database.yml：

production:
  url: <%= ENV['DATABASE_URL'] %>
  adapter: mysql2
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  timeout: 5000

来自 Gemfile.lock：

GEM
  remote: https://rubygems.org/
  specs:
    actionmailer (3.2.15)
      actionpack (= 3.2.15)
      mail (~> 2.5.4)
    actionpack (3.2.15)
      activemodel (= 3.2.15)
      activesupport (= 3.2.15)
      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 (3.2.15)
      activesupport (= 3.2.15)
      builder (~> 3.0.0)
    activerecord (3.2.15)
      activemodel (= 3.2.15)
      activesupport (= 3.2.15)
      arel (~> 3.0.2)
      tzinfo (~> 0.3.29)
    activerecord-import (0.4.1)
      activerecord (>= 3.0)
    activeresource (3.2.15)
      activemodel (= 3.2.15)
      activesupport (= 3.2.15)
    activesupport (3.2.15)
      i18n (~> 0.6, >= 0.6.4)
      multi_json (~> 1.0)
    addressable (2.3.4)
    akami (1.2.0)
      gyoku (>= 0.4.0)
      nokogiri (>= 1.4.0)
    arel (3.0.2)
    atomic (1.1.14)
    attr_encrypted (1.2.1)
      encryptor (>= 1.1.1)
    audited (3.0.0)
    audited-activerecord (3.0.0)
      activerecord (~> 3.0)
      audited (= 3.0.0)
    axlsx (2.0.1)
      htmlentities (~> 4.3.1)
      nokogiri (>= 1.4.1)
      rubyzip (~> 1.0.0)
    axlsx_rails (0.3.0)
      axlsx (>= 2.0.1)
      rails (>= 3.1)
    bcrypt-ruby (3.1.2)
    bcrypt-ruby (3.1.2-x86-mingw32)
    better_errors (0.8.0)
      coderay (>= 1.0.0)
      erubis (>= 2.6.6)
    binding_of_caller (0.7.2)
      debug_inspector (>= 0.0.1)
    builder (3.0.4)
    bumbler (0.3.1)
    byebug (5.0.0)
      columnize (= 0.9.0)
    capistrano (2.15.5)
      highline
      net-scp (>= 1.0.0)
      net-sftp (>= 2.0.0)
      net-ssh (>= 2.0.14)
      net-ssh-gateway (>= 1.1.0)
    capistrano-ext (1.2.1)
      capistrano (>= 1.0.0)
    capistrano-log_with_awesome (0.0.2)
      capistrano (>= 2.5.14)
    capistrano-sidekiq (0.5.3)
      capistrano
      sidekiq
    capybara (2.1.0)
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      xpath (~> 2.0)
    celluloid (0.16.0)
      timers (~> 4.0.0)
    childprocess (0.5.6)
      ffi (~> 1.0, >= 1.0.11)
    chromedriver-helper (0.0.7)
      nokogiri
    chronic (0.10.2)
    climate_control (0.0.3)
      activesupport (>= 3.0)
    cocaine (0.5.3)
      climate_control (>= 0.0.3, < 1.0)
    coderay (1.0.9)
    coffee-rails (3.2.2)
      coffee-script (>= 2.2.0)
      railties (~> 3.2.0)
    coffee-script (2.2.0)
      coffee-script-source
      execjs
    coffee-script-source (1.6.3)
    columnize (0.9.0)
    connection_pool (2.2.0)
    crack (0.4.2)
      safe_yaml (~> 1.0.0)
    curb (0.9.7)
    d3-rails (3.5.5)
      railties (>= 3.1)
    database_cleaner (1.0.1)
    debug_inspector (0.0.2)
    devise (3.1.1)
      bcrypt-ruby (~> 3.0)
      orm_adapter (~> 0.1)
      railties (>= 3.2.6, < 5)
      thread_safe (~> 0.1)
      warden (~> 1.2.3)
    devise_security_extension (0.7.2)
      devise (>= 2.0.0)
      rails (>= 3.1.1)
    diff-lcs (1.2.5)
    encryptor (1.1.3)
    erubis (2.7.0)
    execjs (2.0.2)
    factory_girl (4.5.0)
      activesupport (>= 3.0.0)
    factory_girl_rails (4.5.0)
      factory_girl (~> 4.5.0)
      railties (>= 3.0.0)
    faker (1.1.2)
      i18n (~> 0.5)
    ffi (1.9.10)
    ffi (1.9.10-x86-mingw32)
    font-awesome-rails (4.3.0.0)
      railties (>= 3.2, < 5.0)
    gpgme (2.0.2)
    gyoku (1.1.0)
      builder (>= 2.1.2)
    handlebars_assets (0.20.2)
      execjs (~> 2.0)
      multi_json (~> 1.0)
      sprockets (>= 2.0.0, < 4.0)
      tilt (~> 1.2)
    hashie (3.4.1)
    highline (1.6.20)
    hike (1.2.3)
    hitimes (1.2.2)
    hitimes (1.2.2-x86-mingw32)
    htmlentities (4.3.4)
    httpi (2.1.0)
      rack
      rubyntlm (~> 0.3.2)
    i18n (0.7.0)
    imgkit (1.6.1)
    journey (1.0.4)
    jquery-rails (3.0.4)
      railties (>= 3.0, < 5.0)
      thor (>= 0.14, < 2.0)
    json (1.8.3)
    kaminari (0.14.1)
      actionpack (>= 3.0.0)
      activesupport (>= 3.0.0)
    launchy (2.4.3)
      addressable (~> 2.3)
    mail (2.5.4)
      mime-types (~> 1.16)
      treetop (~> 1.4.8)
    meta_request (0.2.3)
      rack-contrib
      railties
    mime-types (1.25)
    multi_json (1.11.2)
    mysql2 (0.3.17)
    net-scp (1.1.2)
      net-ssh (>= 2.6.5)
    net-sftp (2.1.2)
      net-ssh (>= 2.6.5)
    net-ssh (2.7.0)
    net-ssh-gateway (1.2.0)
      net-ssh (>= 2.6.5)
    newrelic_rpm (3.13.0.299)
    nguyen (1.0.1)
      nokogiri (~> 1.5.6)
    nokogiri (1.5.10)
    nokogiri (1.5.10-x86-mingw32)
    nori (2.3.0)
    orm_adapter (0.4.0)
    paperclip (3.5.2)
      activemodel (>= 3.0.0)
      activesupport (>= 3.0.0)
      cocaine (~> 0.5.3)
      mime-types
    polyglot (0.3.3)
    rack (1.4.7)
    rack-cache (1.2)
      rack (>= 0.4)
    rack-contrib (1.1.0)
      rack (>= 0.9.1)
    rack-protection (1.5.3)
      rack
    rack-ssl (1.3.4)
      rack
    rack-test (0.6.3)
      rack (>= 1.0)
    rails (3.2.15)
      actionmailer (= 3.2.15)
      actionpack (= 3.2.15)
      activerecord (= 3.2.15)
      activeresource (= 3.2.15)
      activesupport (= 3.2.15)
      bundler (~> 1.0)
      railties (= 3.2.15)
    rails_12factor (0.0.3)
      rails_serve_static_assets
      rails_stdout_logging
    rails_serve_static_assets (0.0.5)
    rails_stdout_logging (0.0.5)
    railties (3.2.15)
      actionpack (= 3.2.15)
      activesupport (= 3.2.15)
      rack-ssl (~> 1.3.2)
      rake (>= 0.8.7)
      rdoc (~> 3.4)
      thor (>= 0.14.6, < 2.0)
    rake (10.4.2)
    rdoc (3.12.2)
      json (~> 1.4)
    redis (3.2.1)
    redis-namespace (1.5.2)
      redis (~> 3.0, >= 3.0.4)
    rolify (3.2.0)
    rspec-core (2.14.7)
    rspec-expectations (2.14.4)
      diff-lcs (>= 1.1.3, < 2.0)
    rspec-mocks (2.14.4)
    rspec-rails (2.14.1)
      actionpack (>= 3.0)
      activemodel (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec-core (~> 2.14.0)
      rspec-expectations (~> 2.14.0)
      rspec-mocks (~> 2.14.0)
    ruby-ole (1.2.11.7)
    rubyXL (3.1.0)
      nokogiri (>= 1.4.4)
      rubyzip (>= 1.0.0)
    rubyntlm (0.3.4)
    rubyzip (1.0.0)
    rvm-capistrano (1.5.1)
      capistrano (~> 2.15.4)
    safe_yaml (1.0.4)
    sass (3.2.12)
    sass-rails (3.2.6)
      railties (~> 3.2.0)
      sass (>= 3.1.10)
      tilt (~> 1.3)
    savon (2.3.0)
      akami (~> 1.2.0)
      builder (>= 2.1.2)
      gyoku (~> 1.1.0)
      httpi (~> 2.1.0)
      nokogiri (>= 1.4.0, < 1.6)
      nori (~> 2.3.0)
      wasabi (~> 3.2.0)
    selenium-webdriver (2.46.2)
      childprocess (~> 0.5)
      multi_json (~> 1.0)
      rubyzip (~> 1.0)
      websocket (~> 1.0)
    shoulda-matchers (2.2.0)
      activesupport (>= 3.0.0)
    sidekiq (3.4.2)
      celluloid (~> 0.16.0)
      connection_pool (~> 2.2, >= 2.2.0)
      json (~> 1.0)
      redis (~> 3.2, >= 3.2.1)
      redis-namespace (~> 1.5, >= 1.5.2)
    sidekiq-failures (0.4.5)
      sidekiq (>= 2.16.0)
    sinatra (1.4.6)
      rack (~> 1.4)
      rack-protection (~> 1.4)
      tilt (>= 1.3, < 3)
    soda-ruby (0.2.13)
      hashie
    spreadsheet (0.9.4)
      ruby-ole (>= 1.0)
    spring (1.3.6)
    spring-commands-rspec (1.0.4)
      spring (>= 0.9.1)
    sprockets (2.2.3)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    teaspoon (1.0.2)
      railties (>= 3.2.5, < 5)
    teaspoon-mocha (2.2.4)
      teaspoon (>= 1.0.0)
    thor (0.19.1)
    thread_safe (0.1.3)
      atomic
    tilt (1.4.1)
    timeliness (0.3.7)
    timers (4.0.1)
      hitimes
    treetop (1.4.15)
      polyglot
      polyglot (>= 0.3.1)
    tzinfo (0.3.38)
    uglifier (2.2.1)
      execjs (>= 0.3.0)
      multi_json (~> 1.0, >= 1.0.2)
    validates_timeliness (3.0.14)
      timeliness (~> 0.3.6)
    vcr (2.9.3)
    warden (1.2.3)
      rack (>= 1.0)
    wasabi (3.2.0)
      httpi (~> 2.0)
      nokogiri (>= 1.4.0, < 1.6)
    wash_out (0.8.4)
      nori (>= 2.0.0)
    webmock (1.17.4)
      addressable (>= 2.2.7)
      crack (>= 0.3.2)
    websocket (1.2.2)
    whenever (0.8.4)
      activesupport (>= 2.3.4)
      chronic (>= 0.6.3)
    xpath (2.0.0)
      nokogiri (~> 1.3)

PLATFORMS
  ruby
  x86-mingw32

DEPENDENCIES
  activerecord-import (= 0.4.1)
  addressable
  attr_encrypted
  audited-activerecord (~> 3.0)
  axlsx_rails (= 0.3.0)
  better_errors
  binding_of_caller
  bumbler
  bundler
  byebug
  capistrano
  capistrano-ext
  capistrano-sidekiq
  capistrano-slack!
  capybara
  chromedriver-helper
  coffee-rails (~> 3.2.1)
  curb (= 0.9.7)
  d3-rails
  database_cleaner
  devise
  devise_security_extension
  factory_girl_rails
  faker
  font-awesome-rails
  gpgme
  handlebars_assets
  imgkit
  jquery-rails
  kaminari
  launchy
  meta_request (= 0.2.3)
  mysql2 (= 0.3.17)
  newrelic_rpm
  nguyen
  paperclip
  rails (~> 3.2.14)
  rails_12factor
  rolify
  rspec-expectations
  rspec-rails
  rubyXL
  rvm-capistrano
  sass-rails (~> 3.2.3)
  savon
  selenium-webdriver
  shoulda-matchers
  sidekiq
  sidekiq-failures
  sinatra
  soda-ruby
  spreadsheet
  spring
  spring-commands-rspec
  teaspoon-mocha
  uglifier (>= 1.0.3)
  validates_timeliness
  vcr
  wash_out
  webmock
  whenever
  wkhtmltoimage-binary!

RUBY VERSION
   ruby 2.3.3p222

BUNDLED WITH
   1.17.3

我整天都在努力解决这个问题，阅读了我能找到的每一篇 Stack Overflow 和支持文章，但还没有弄清楚我的配置哪里出错了。

标签： ruby-on-railsherokucleardb

解决方案

看起来您在尝试使用最新版本的activerecord-import gem（2020 年 10 月发布）与 activerecord 3.2.22.5（2016 年 9 月发布）时遇到了兼容性问题。您确实提到它是一个 rails 3.2.15 应用程序，但您没有使用令人困惑的 activerecord 3.2.15。

尝试使用应该与 rails 3.2.15 兼容的activerecord-import 0.4.1（2013 年 7 月发布）和activerecord 3.2.15。

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