资产：预编译在Rails 3.2.15上使用Asset Pipeline“File exists”失败

我无法为我的Rails 3.2.15资产管道启用的应用程序预编译我的资产。

的Gemfile：

# Asset pipeline group :assets do gem 'sass-rails', '3.2.5' gem 'coffee-rails', '3.2.2' gem 'uglifier', '1.3.0' end 

production.rb

  # Disable Rails's static asset server (Apache or nginx will already do this) config.serve_static_assets = false # Compress JavaScripts and CSS config.assets.compress = true # Don't fallback to assets pipeline if a precompiled asset is missed config.assets.compile = false # Generate digests for assets URLs config.assets.digest = true # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added) config.assets.precompile += %w( *.js *.css ) # Choose which compressors to use # config.assets.js_compressor = :uglifier # config.assets.css_compressor = :scss 

这些是我运行的命令：

 bundle exec rake assets:clean RAILS_ENV=production --trace bundle exec rake assets:precompile RAILS_ENV=production --trace 

我收到以下错误：

 ** Invoke assets:precompile (first_time) ** Execute assets:precompile /usr/bin/ruby1.9.1 /usr/local/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets --trace ** Invoke assets:precompile:all (first_time) ** Execute assets:precompile:all ** Invoke assets:precompile:primary (first_time) ** Invoke assets:environment (first_time) ** Execute assets:environment ** Invoke environment (first_time) ** Execute environment ** Invoke tmp:cache:clear (first_time) ** Execute tmp:cache:clear ** Execute assets:precompile:primary rake aborted! File exists - (/media/shared/code/me/app/tmp/cache/assets/sprockets%2F19d4dbfec65d2b21144310264f4d8c7320131106-63076-sh3p6h, /media/shared/code/me/app/tmp/cache/assets/D04/B00/sprockets%2F19d4dbfec65d2b21144310264f4d8c73) /usr/lib/ruby/1.9.1/fileutils.rb:519:in `rename' /usr/lib/ruby/1.9.1/fileutils.rb:519:in `block in mv' /usr/lib/ruby/1.9.1/fileutils.rb:1515:in `block in fu_each_src_dest' /usr/lib/ruby/1.9.1/fileutils.rb:1531:in `fu_each_src_dest0' /usr/lib/ruby/1.9.1/fileutils.rb:1513:in `fu_each_src_dest' /usr/lib/ruby/1.9.1/fileutils.rb:508:in `mv' /usr/lib/ruby/gems/1.9.1/gems/activesupport-3.2.15/lib/active_support/core_ext/file/atomic.rb:36:in `atomic_write' 

只有后一个文件（每次运行命令时似乎都会改变）在磁盘上可见，前者似乎是一个创建然后移动的临时文件。 看到错误后看不见。

这意味着什么？

我正在运行Ubuntu 12.04.3 LTS，Rubygems 2.1.6，Bundler 1.3.5和Ruby 1.9.3p429

谢谢