突然无法推向Heroku！错误消息说：
未初始化的常数Haml :: Util :: Sass
（相同的代码和库在2天前工作正常！）
编译显然在这行application.rb：
上失败了Bundler.require(*Rails.groups(:assets => %w(development test)))
尝试编译时我得到了这个：
无法检测rake任务，确保您可以针对您的应用运行
$ bundle exec rake -P，而不会出现环境变量 使用Gemfile的生产组。这可能是 故意的，如果你预期要运行的rake任务取消构建 （CTRL + C）并修复错误然后提交修复：rake aborted！
未初始化的常数Haml :: Util :: Sass
完整堆栈跟踪：
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/haml-3.1.6/lib/haml/util.rb:348:in `try_sass'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/haml-3.1.6/lib/sass/rails3_shim.rb:1:in `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/sass-3.3.2/lib/sass/root.rb:1:in `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/sass-3.3.2/lib/sass/util.rb:10:in `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/sass-3.3.2/lib/sass/version.rb:2:in `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/haml-3.1.6/lib/haml/util.rb:347:in `try_sass'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/haml-3.1.6/lib/sass.rb:6:in `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:76:in `require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:72:in `each'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:72:in `block in require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:61:in `each'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler/runtime.rb:61:in `require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/bundler-1.5.2/lib/bundler.rb:131:in `require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/config/application.rb:7:i
n `<top (required)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/Rakefile:5:in `require'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/Rakefile:5:in `<top (requ
ired)>'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `load'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `load_rakefile'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:583:in `raw_load_rakefile'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:89:in `block in load_rakefile'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:88:in `load_rakefile'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:72:in `block in run'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/lib/rake/application.rb:70:in `run'
/tmp/build_ae51e5ec-bc73-4105-bce5-33edbe8bee32/vendor/bundle/ruby/1.9.1/
gems/rake-10.0.3/bin/rake:33:in `<top (required)>'
vendor/bundle/bin/rake:16:in `load'
vendor/bundle/bin/rake:16:in `<main>'
-----> WARNINGS:
Injecting plugin 'rails_log_stdout'
Injecting plugin 'rails3_serve_static_assets'
Add 'rails_12factor' gem to your Gemfile to skip plugin injection
Removing `Gemfile.lock` because it was generated on Windows.
Bundler will do a full resolve so native gems are handled properly.
This may result in unexpected gem versions being used in your app.
In rare occasions Bundler may not be able to resolve your dependencies at all.
https://devcenter.heroku.com/articles/bundler-windows-gemfile
-----> Discovering process types
Procfile declares types -> (none)
Default types for Ruby -> console, rake, web, worker
的Gemfile：
source 'https://rubygems.org'
ruby "1.9.3"
gem 'rails', '3.2.11'
gem 'useragent'
gem 'rubyzip', '~> 1.0.0'
gem 'vpim'
gem 'ri_cal'
gem "geocoder"
gem 'sass'
gem 'haml', '3.1.6'
gem 'settingslogic', '~> 2.0.8'
gem 'devise', '2.1.2'
gem 'omniauth', '1.1.0'
gem 'omniauth-facebook', '1.4.1'
gem 'omniauth-twitter'
gem 'omniauth-linkedin'
gem "omniauth-google", "~> 1.0.2"
gem 'paperclip', '~> 3.3.0'
gem 'aws-s3', '~> 0.6.3'
gem 'aws-sdk', '~> 1.6.9'
gem 'delayed_job_active_record', '0.4.4'
gem "fb_graph", '2.4.19'
gem "linkedin"
gem "twitter"
gem "nokogiri", "~> 1.5.5"
gem "gdata", :git=> "https://github.com/agentrock/gdata.git"
gem 'acts_as_api', "0.4.1"
gem "rails_admin"
gem "meta_search", "~> 1.1.3"
gem "possessive", "~> 1.0.1"
gem "rake", "10.0.3"
gem 'newrelic_rpm'
gem "json", "1.7.7"
gem "omniauth-google-oauth2"
gem "google-api-client", :require => 'google/api_client'
gem "rest-client", "~> 1.6.7"
gem "customerio"
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails', '~> 2.1'
gem 'jquery-ui-rails', '~> 2.0.0'
gem 'jquery-fileupload-rails','~> 0.3.5'
group :development, :test do
gem 'rspec-rails', '~> 2.13.0'
gem 'factory_girl_rails', '4.0.0'
gem "spork", "~> 0.9.2"
gem 'hoe', '~> 3.4.0'
end
group :test do
gem "shoulda", ">=3.0.1"
gem 'shoulda-matchers', "1.4.0"
gem 'faker'
gem 'capybara'
gem 'guard-rspec'
gem 'launchy'
end
group :development do
gem 'sqlite3', '1.3.7'
end
group :staging, :production do
gem 'pg', '0.13.2'
end
答案 0 :(得分：7)
你正在使用haml 3.1.6，这是在这个版本的sass中断。
最好的解决方法是更新到最新版本的haml 4.0.x：
$ bundle update haml haml-rails