我使用OmniAuth而不是facebook，这就是为什么我在部署到heroku时出现这个错误的原因。应用程序立即崩溃，我得到这个错误，我在互联网上寻找，但无法解决。也许你有一个主意:
2013-06-21T08:01:57.114204+00:00 heroku[web.1]: State changed from crashed to starting
2013-06-21T08:02:10.368768+00:00 heroku[web.1]: Starting process with command `bundle exec rails server -p 42262`
2013-06-21T08:02:12.281767+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/facebooker-1.0.75/lib/facebooker/adapters/adapter_base.rb:6:in `<class:AdapterBase>': uninitialized constant ActiveSupport::CoreExtensions (NameError)
2013-06-21T08:02:12.736090+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/facebooker-1.0.75/lib/facebooker/adapters/adapter_base.rb:3:in `<module:Facebooker>'
2013-06-21T08:02:12.841513+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/facebooker-1.0.75/lib/facebooker/adapters/adapter_base.rb:1:in `<top (required)>'
2013-06-21T08:02:12.941309+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/facebooker-1.0.75/lib/facebooker.rb:259:in `require'
2013-06-21T08:02:13.048146+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/facebooker-1.0.75/lib/facebooker.rb:259:in `<top (required)>'
2013-06-21T08:02:13.147354+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:72:in `require'
2013-06-21T08:02:13.246417+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
2013-06-21T08:02:13.345101+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:70:in `each'
2013-06-21T08:02:13.443960+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:70:in `block in require'
2013-06-21T08:02:13.555103+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:59:in `each'
2013-06-21T08:02:13.653827+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler/runtime.rb:59:in `require'
2013-06-21T08:02:13.753646+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/bundler-1.3.2/lib/bundler.rb:132:in `require'
2013-06-21T08:02:13.852584+00:00 app[web.1]: from /app/config/application.rb:7:in `<top (required)>'
2013-06-21T08:02:13.951759+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.11/lib/rails/commands.rb:53:in `require'
2013-06-21T08:02:13.401385+00:00 heroku[web.1]: Process exited with status 1
2013-06-21T08:02:14.051043+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.11/lib/rails/commands.rb:53:in `block in <top (required)>'
2013-06-21T08:02:13.410972+00:00 heroku[web.1]: State changed from starting to crashed
2013-06-21T08:02:14.150368+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.11/lib/rails/commands.rb:50:in `tap'
2013-06-21T08:02:14.251013+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.11/lib/rails/commands.rb:50:in `<top (required)>'
真正奇怪的是，它指的是facebook gem 1.0.75，我甚至没有在我的gemfile中，也没有安装。
Gemfile:
group :development, :test do
gem 'sqlite3'
end
group :production do
gem 'pg'
gem 'thin'
end
gem "paperclip", "~> 3.0"
gem 'aws-sdk'
gem 'omniauth-facebook', "~> 1.4.0"
我的应用程序。Rb文件在开发上工作完美，没有任何问题。我不能复制这个，我几乎无能为力。
Gemfile.lock
GEM
remote: https://rubygems.org/
specs:
actionmailer (3.2.11)
actionpack (= 3.2.11)
mail (~> 2.4.4)
actionpack (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.4)
rack (~> 1.4.0)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.2.1)
activemodel (3.2.11)
activesupport (= 3.2.11)
builder (~> 3.0.0)
activerecord (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
activesupport (3.2.11)
i18n (~> 0.6)
multi_json (~> 1.0)
arel (3.0.2)
aws-sdk (1.8.3.1)
json (~> 1.4)
nokogiri (>= 1.4.4)
uuidtools (~> 2.1)
builder (3.0.4)
cocaine (0.4.2)
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 (1.6.2)
erubis (2.7.0)
execjs (1.4.0)
multi_json (~> 1.0)
faraday (0.8.7)
multipart-post (~> 1.1)
hashie (2.0.5)
hike (1.2.3)
httpauth (0.2.0)
i18n (0.6.4)
journey (1.0.4)
jquery-rails (3.0.1)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.0)
jwt (0.1.8)
multi_json (>= 1.5)
mail (2.4.4)
i18n (>= 0.4.0)
mime-types (~> 1.16)
treetop (~> 1.4.8)
mime-types (1.23)
multi_json (1.7.7)
multipart-post (1.2.0)
nokogiri (1.5.6)
oauth2 (0.8.1)
faraday (~> 0.8)
httpauth (~> 0.1)
jwt (~> 0.1.4)
multi_json (~> 1.0)
rack (~> 1.2)
omniauth (1.1.4)
hashie (>= 1.2, < 3)
rack
omniauth-facebook (1.4.0)
omniauth-oauth2 (~> 1.0.2)
omniauth-oauth2 (1.0.3)
oauth2 (~> 0.8.0)
omniauth (~> 1.0)
paperclip (3.4.0)
activemodel (>= 3.0.0)
activerecord (>= 3.0.0)
activesupport (>= 3.0.0)
cocaine (~> 0.4.0)
mime-types
pg (0.15.1)
polyglot (0.3.3)
rack (1.4.5)
rack-cache (1.2)
rack (>= 0.4)
rack-ssl (1.3.3)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (3.2.11)
actionmailer (= 3.2.11)
actionpack (= 3.2.11)
activerecord (= 3.2.11)
activeresource (= 3.2.11)
activesupport (= 3.2.11)
bundler (~> 1.0)
railties (= 3.2.11)
railties (3.2.11)
actionpack (= 3.2.11)
activesupport (= 3.2.11)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (>= 0.14.6, < 2.0)
rake (10.0.4)
rdoc (3.12.2)
json (~> 1.4)
sass (3.2.9)
sass-rails (3.2.6)
railties (~> 3.2.0)
sass (>= 3.1.10)
tilt (~> 1.3)
sprockets (2.2.2)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sqlite3 (1.3.7)
thor (0.18.1)
tilt (1.4.1)
treetop (1.4.14)
polyglot
polyglot (>= 0.3.1)
tzinfo (0.3.37)
uglifier (2.1.1)
execjs (>= 0.3.0)
multi_json (~> 1.0, >= 1.0.2)
uuidtools (2.1.3)
PLATFORMS
ruby
DEPENDENCIES
aws-sdk
coffee-rails (~> 3.2.1)
jquery-rails
omniauth-facebook (= 1.4.0)
paperclip (~> 3.0)
pg
rails (= 3.2.11)
sass-rails (~> 3.2.3)
sqlite3
uglifier (>= 1.0.3)
解决!原来我初始化了一个错误的分支，并且一直在推送一些旧的代码。