我试图将我的应用程序的新版本部署到heroku。部署失败，因为heroku说，宝石pg不在我的GEMFILE中...我在我的GEMFILE中有这个postgres gem。我也寻找了一些答案，但没有人工作......任何人都有想法吗？
我使用Ruby 2.0.0p247，Rails 3.2.14 refinery-cms 2.1.0
这是我的Gemfile：
source 'https://rubygems.org'
ruby '2.0.0'
gem 'rails'
gem 'newrelic_rpm'
group :production do
gem 'pg'
gem 'fog'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails'
gem 'coffee-rails'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platforms => :ruby
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby'
# To use Jbuilder templates for JSON
gem 'jbuilder'
# Use unicorn as the app server
gem 'unicorn'
# Deploy with Capistrano
gem 'capistrano'
# To use debugger
gem 'debugger'
# The Heroku gem allows you to interface with Heroku's API
gem 'heroku'
# Fog allows you to use S3 assets (added for Heroku)
gem 'fog'
# Postgres support (added for Heroku)
#gem 'pg'
#Connecting to Amazon S3
gem 'aws-s3'
#gem 'taps'
# Refinery CMS
#gem 'refinerycms', '~> 2.0.0', :git => 'git://github.com/refinery/refinerycms.git', :branch => '2-0-stable'
gem 'refinerycms'
# Specify additional Refinery CMS Extensions here (all optional):
gem 'refinerycms-i18n'
# gem 'refinerycms-blog', '~> 2.0.0'
# gem 'refinerycms-inquiries', '~> 2.0.0'
# gem 'refinerycms-search', '~> 2.0.0'
gem 'refinerycms-page-images'
gem 'refinerycms-announcements', :path => 'vendor/extensions'
gem 'refinerycms-publications', :path => 'vendor/extensions'
gem 'refinerycms-workers', :path => 'vendor/extensions'
这里出现错误信息：
-----> Writing config/database.yml to read from DATABASE_URL
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
rake aborted!
Please install the postgresql adapter: `gem install activerecord-postgresql-adapter` (pg is not part of the bundle. Add it to Gemfile.)
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/rubygems_integration.rb:214:in `block in replace_gem'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/connection_adapters/postgresql_adapter.rb:7:in `<top (required)>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `block in require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in `load_dependency'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:50:in `resolve_hash_connection'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:41:in `resolve_string_connection'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:27:in `spec'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:130:in `establish_connection'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/railtie.rb:88:in `block (2 levels) in <class:Railtie>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/lazy_load_hooks.rb:26:in `block in on_load'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/lazy_load_hooks.rb:25:in `each'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/lazy_load_hooks.rb:25:in `on_load'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.14/lib/active_record/railtie.rb:80:in `block in <class:Railtie>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/initializable.rb:30:in `instance_exec'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/initializable.rb:30:in `run'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/initializable.rb:55:in `block in run_initializers'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/initializable.rb:54:in `each'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/initializable.rb:54:in `run_initializers'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/application.rb:136:in `initialize!'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/railtie/configurable.rb:30:in `method_missing'
/tmp/build_37zyls4tcoz59/config/environment.rb:5:in `<top (required)>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `block in require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in `load_dependency'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/application.rb:103:in `require_environment!'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/railties-3.2.14/lib/rails/application.rb:305:in `block (2 levels) in initialize_tasks'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.14/lib/sprockets/assets.rake:93:in `block (2 levels) in <top (required)>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.14/lib/sprockets/assets.rake:60:in `block (3 levels) in <top (required)>'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.14/lib/sprockets/assets.rake:23:in `invoke_or_reboot_rake_task'
/tmp/build_37zyls4tcoz59/vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.14/lib/sprockets/assets.rake:29:in `block (2 levels) in <top (required)>'
Tasks: TOP => environment
(See full trace by running task with --trace)
Precompiling assets failed, enabling runtime asset compilation
Injecting rails31_enable_runtime_asset_compilation
Please see this article for troubleshooting help:
http://devcenter.heroku.com/articles/rails31_heroku_cedar#troubleshooting
答案 0 :(得分：2)
根据gemfile：
# Postgres support (added for Heroku)
#gem 'pg'
pg被注释掉了。取消注释以安装它
gem 'pg'
例如，在我的gemfile中，我在windows中工作，而heroku则没有。所以我有
gem "pg", '~> 0.15.1', :group => :production
group :development, :test do
gem 'pg', "~> 0.15.1", :platform => [:mswin, :mingw]
因为你必须安装一些数据库，所以最好是pg，因为它是heroku
另外，正如Gavin在评论中所说的那样 - 确保你正在制作中，因为似乎heroku不认为是..
答案 1 :(得分：0)
问题是您在生产组中拥有pg gem。因此，当资产在Heroku上预编译时（使用全局组+资产组），则无法确实找到PG gem，因为它位于生产组中。
我建议在全局组中使用pg gem并允许资产组。
答案 2 :(得分：-1)
哦不...解决方法是删除我的git repo并创建一个新的。我不知道为什么，但我的repo搞砸了（我添加了新文件等等），所以它没有提交所有数据。在chucknelson的小费之后，我试图锁定某个rails版本，看到heroku没有得到这个。