Ruby on rails 3 Rails 3.1应用程序可以'；不要部署在Heroku上。获取地址=错误代码=H10 desc=”时；“应用程序崩溃”；没有任何可识别的原因

我的任务是将一个旧的、健壮的Rails 2.3.1应用程序升级到Rails 3.1。一切都相当“不”顺利，直到撞上一堵无形但臭名昭著的砖墙，这堵砖墙被称为“部署一些在本地完美工作的东西，但在heroku上，就不那么顺利了。”

基本上是在将我的分支部署到heroku之后，如：

git push heroku mitchell_troubleshoot_some_issues:master

我得到了一个错误页面，日志中“没有”很多有用的信息，尽管我已经在下面列出了这些信息

2014-03-10T23:50:13.187273+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:219:in `reverse_each'
2014-03-10T23:50:13.187939+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
2014-03-10T23:50:13.187273+00:00 app[web.1]:      from /app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `<top (required)>'
2014-03-10T23:50:13.187939+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `instance_exec'
2014-03-10T23:50:13.187939+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `eval'
2014-03-10T23:50:13.187939+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:92:in `initialize!'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.10/lib/rack/builder.rb:51:in `instance_eval'
2014-03-10T23:50:13.187481+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
2014-03-10T23:50:13.188113+00:00 app[web.1]:      from config.ru:4:in `require'
2014-03-10T23:50:13.188113+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn.rb:48:in `eval'
2014-03-10T23:50:13.188568+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/bin/unicorn_rails:209:in `<top (required)>'
2014-03-10T23:50:13.187939+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.
9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `run'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:760:in `call'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from config.ru:1:in `<main>'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:760:in `build_app!'
2014-03-10T23:50:13.188396+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn.rb:48:in `block in builder'
2014-03-10T23:50:13.188568+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:137:in `start'
2014-03-10T23:50:14.822134+00:00 heroku[web.1]: Process exited with status 1
2014-03-10T23:50:14.841895+00:00 heroku[web.1]: State changed from starting to crashed
2014-03-10T23:50:14.843444+00:00 heroku[web.1]: State changed from crashed to starting
2014-03-10T23:50:20.148711+00:00 heroku[web.1]: Starting process with command `bundle exec unicorn_rails -p 21066 -c ./config/unicorn.rb`
2014-03-10T23:50:21.875912+00:00 app[web.1]: I, [2014-03-10T23:50:21.875542 #2]  INFO -- : Refreshing Gem list
2014-03-10T23:50:28.553086+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Starting the New Relic Agent.
2014-03-10T23:50:28.558214+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Environment: staging
2014-03-10T23:50:28.558214+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Dispatcher: unicorn
2014-03-10T23:50:28.558455+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Application: conference-2014-staging
2014-03-10T23:50:28.558455+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Connecting workers after forking.
2014-03-10T23:50:28.642624+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing DelayedJob instrumentation hooks
2014-03-10T23:50:28.642624+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing Net instrumentation
2014-03-10T23:50:28.642807+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing DelayedJob instrumentation
2014-03-10T23:50:28.643980+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing Unicorn instrumentation
2014-03-10T23:50:28.643980+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Detected Unicorn, please see additional documentation: https://newrelic.com/docs/troubleshooting/im-using-unicorn-and-i-dont-see-any-data
2014-03-10T23:50:28.644305+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing ActiveRecord instrumentation
2014-03-10T23:50:28.644473+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing Rails 3 Controller instrumentation
2014-03-10T23:50:28.644653+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing Rails 3.1/3.2 view instrumentation
2014-03-10T23:50:28.691067+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Installing Rails3 Error instrumentation
2014-03-10T23:50:28.691067+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : Finished instrumentation
2014-03-10T23:50:28.691663+00:00 app[web.1]: ** [NewRelic][03/10/14 23:50:28 +0000 66936d53-7909-4126-bf20-bd00654ebc56 (2)] INFO : NewRelic::Agent::Samplers::DelayedJobSampler sampler not available: No DJ worker present
2014-03-10T23:50:28.837595+00:00 app[web.1]: /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:247:in `mkdir': Read-only file system - /public (Errno::EROFS)
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:221:in `block (2 levels) in mkdir_p'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:219:in `block in mkdir_p'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:219:in `reverse_each'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `eval'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `block in <class:Plugin>'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:247:in `fu_mkdir'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `<top (required)>'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:205:in `each'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/ruby-1.9.3/lib/ruby/1.9.1/fileutils.rb:205:in `mkdir_p'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `each'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `instance_exec'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
2014-03-10T23:50:28.837595+00:00 app[web.1]:      from /app/vendor/plugins/seed/lib/calendar_date_select.rb:29:in `block in <top (required)>'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `run'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:50:in `block in run_initializers'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/plugins/seed/init.rb:1:in `block in <class:Plugin>'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.10/lib/rack/builder.rb:51:in `instance_eval'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn.rb:48:in `block in builder'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn.rb:48:in `eval'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/bin/unicorn_rails:139:in `call'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/bin/unicorn_rails:139:in `block in rails_builder'
2014-03-10T23:50:28.837818+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `each'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `run_initializers'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:760:in `build_app!'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:137:in `start'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from config.ru:1:in `new'
2014-03-10T23:50:28.839018+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/bin/unicorn_rails:23:in `load'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from config.ru:1:in `<main>'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:92:in `initialize!'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from /app/config/environment.rb:9:in `<top (required)>'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from config.ru:4:in `require'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/lib/unicorn/http_server.rb:760:in `call'
2014-03-10T23:50:28.839018+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/bin/unicorn_rails:23:in `<main>'
2014-03-10T23:50:28.839018+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/unicorn-4.8.2/bin/unicorn_rails:209:in `<top (required)>'
2014-03-10T23:50:28.838039+00:00 app[web.1]:      from config.ru:4:in `block in <main>'
2014-03-10T23:50:28.838796+00:00 app[web.1]:      from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.10/lib/rack/builder.rb:51:in `initialize'
2014-03-10T23:50:30.102462+00:00 heroku[web.1]: State changed from starting to crashed
2014-03-10T23:50:30.096124+00:00 heroku[web.1]: Process exited with status 1
2014-03-10T23:50:30.960170+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=stagingconference2014.myappprogram.org request_id=89e5fc26-287d-4aac-acba-ee9015668556 fwd="75.146.48.253" dyno= connect= service= status=503 bytes=
2014-03-10T23:50:52.092445+00:00 heroku[api]: Rollback to v44 by info@mycompany.com
2014-03-10T23:50:52.092543+00:00 heroku[api]: Release v64 created by info@mycompany.com

这是我的staging.rb。在这一点上，它看起来完全像我的development.rb

MyAppconference::Application.configure do
    # Settings specified here will take precedence over those in config/application.rb

    # In the development environment your application's code is reloaded on
    # every request.  This slows down response time but is perfect for development
    # since you don't have to restart the web server when you make code changes.
    config.cache_classes = false
    config.cache_store = :file_store, "tmp/cache"

    # Log error messages when you accidentally call methods on nil.
    config.whiny_nils = true

    # Show full error reports and disable caching
    config.consider_all_requests_local       = true
    config.action_controller.perform_caching = false

    ######
    config.log_level = :debug
    #config.cache_store = :mem_cache_store, {:namespace => 'seed'}
    config.cache_store = :file_store, "tmp/cache"

    # Don't care if the mailer can't send
    config.action_mailer.delivery_method = :test
    config.action_mailer.raise_delivery_errors = false

    # Disable delivery errors, bad email addresses will be ignored
    # config.action_mailer.raise_delivery_errors = false
    config.action_mailer.delivery_method = :smtp

    # Print deprecation notices to the Rails logger
    config.active_support.deprecation = :log

    # Only use best-standards-support built into browsers
    config.action_dispatch.best_standards_support = :builtin

    # Do not compress assets
    config.assets.compress = false

    # Expands the lines which load the assets
    config.assets.debug = true

    config.serve_static_assets = true
    #config.assets.enabled = false
    config.assets.paths << "#{Rails.root}/public/"
    config.assets.paths << "#{Rails.root}/public/javascripts"
    #config.assets.paths << "#{Rails.root}/public/javascripts/ckeditor"
    config.assets.paths << "#{Rails.root}/public/stylesheets"
    config.assets.paths << "#{Rails.root}/public/images"
end

我得到了以下结果：

Running `rake db:migrate` attached to terminal... up, run.4962
rake aborted!
Read-only file system - /public
/app/vendor/plugins/seed/lib/calendar_date_select.rb:29:in `block in <top (required)>'
/app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `each'
/app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:225:in `load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/plugins/seed/init.rb:1:in `block in <class:Plugin>'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `eval'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `block in <class:Plugin>'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `instance_exec'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `run'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:50:in `block in run_initializers'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `run_initializers'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:92:in `initialize!'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
/app/config/environment.rb:9:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:78:in `require_environment!'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:189:in `block (2 levels) in initialize_tasks'
Tasks: TOP => db:migrate => environment
(See full trace by running task with --trace)

正在运行附加到终端的'rake db:migrate'。。。起来，跑
雷克流产了！
只读文件系统-/public
/app/vendor/plugins/seed/lib/calendar\u date\u select.rb:29:in'block in'
/app/vendor/plugins/seed/lib/calendar\u date\u select.rb:26:in'each'
/app/vendor/plugins/seed/lib/calendar\u date\u select.rb:26:in`'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:240:in'require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u-support/dependencies.rb:240:在'block-in-require'中
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u-support/dependencies.rb:225:in'load\u-dependencity'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:240:in'require'
/app/vendor/plugins/seed/init.rb:1:in'block-in'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in'eval'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in'block-in'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in'instance_exec'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in'run'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:50:“运行中的块初始化器”
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in'each'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in'run_initializers'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:92:in'initialize！'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in'method_missing'
/app/config/environment.rb:9:in`'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:240:in'require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u-support/dependencies.rb:240:在'block-in-require'中
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:223:in`block in load\u dependencity'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u-support/dependencies.rb:640:in'new\u-in'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:223:in'load\u dependencity'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active\u support/dependencies.rb:240:in'require'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:78:in'require_环境！'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:189:在“初始化_任务中的块（2个级别）”中
任务：TOP=>db:migrate=>environment
（通过使用--trace运行任务查看完整跟踪）

---

有人能帮忙吗？我将非常感激。多谢各位

看起来

calendar\u date\u select

插件是从

vendor/plugins/seed

目录加载的。很难说它是什么版本，但看起来该插件正在试图管理您的公共目录中的资产。来自此提交的详细信息：。您是否尝试过删除该依赖项并返回到您的文件中指定的依赖项？谢谢您的提示。我会查出来，然后再圈回来。是的，那个插件正在尝试创建一个目录。很奇怪。

heroku run rake db:migrate --app conference-2014-staging

Running `rake db:migrate` attached to terminal... up, run.4962
rake aborted!
Read-only file system - /public
/app/vendor/plugins/seed/lib/calendar_date_select.rb:29:in `block in <top (required)>'
/app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `each'
/app/vendor/plugins/seed/lib/calendar_date_select.rb:26:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:225:in `load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/plugins/seed/init.rb:1:in `block in <class:Plugin>'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `eval'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/plugin.rb:80:in `block in <class:Plugin>'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `instance_exec'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `run'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:50:in `block in run_initializers'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `run_initializers'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:92:in `initialize!'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
/app/config/environment.rb:9:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:78:in `require_environment!'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:189:in `block (2 levels) in initialize_tasks'
Tasks: TOP => db:migrate => environment
(See full trace by running task with --trace)