您好我是Rails的新手，我刚刚在Ubuntu 12.04上使用RVM设置了一个生产环境。如果重要，我已经在多用户模式下安装了ruby（rvm位于/ usr / local / rvm / bin / rvm中）。
我正在设置Capistrano来部署我的rails应用程序。除了包含任何CoffeeScript文件之外，一切都很好。作为部署过程的一部分，Capistrano运行rake资产：预编译。这在我的本地环境（osx）上运行得很好但在我的ubuntu上失败了。我已经安装了我认为我需要的所有宝石（咖啡脚本咖啡脚本来源）。但它仍然无效。这里有什么指示？
* executing "cd -- /var/www/appname/releases/20130515220819 && rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile"
servers: ["1.2.3.4"]
[1.2.3.4] executing command
*** [err :: 1.2.3.4] rake aborted!
*** [err :: 1.2.3.4] ReferenceError: CoffeeScript is not defined
*** [err :: 1.2.3.4] (in /var/www/appname/releases/20130515220819/app/assets/javascripts/email_tests.js.coffee)
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:68:in `extract_result'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:28:in `block in exec'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:41:in `compile_to_tempfile'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:27:in `exec'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:19:in `eval'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:33:in `call'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/coffee-script-2.2.0/lib/coffee_script.rb:57:in `compile'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/tilt-1.3.7/lib/tilt/coffee.rb:46:in `evaluate'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/tilt-1.3.7/lib/tilt/template.rb:77:in `render'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/context.rb:193:in `block in evaluate'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/context.rb:190:in `each'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/context.rb:190:in `evaluate'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/processed_asset.rb:12:in `initialize'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/base.rb:249:in `new'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/base.rb:249:in `block in build_asset'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/base.rb:270:in `circular_call_protection'
*** [err :: 1.2.3.4] /usr/local/rvm/gems/ruby-1.9.3-p429/gems/sprockets-2.2.2/lib/sprockets/base.rb:248:in `build_asset'
答案 0 :(得分：1)
尝试将此添加到您的Gemfile：
gem "therubyracer"
根据我的经验，Ubuntu需要JavaScript解释器，而不是OSX。
希望这有帮助！
答案 1 :(得分：0)
所以经过多次挖掘，我意识到这个文件有0个长度：
/usr/local/rvm/gems/ruby-1.9.3-p429/gems/coffee-script-source-1.6.2/lib/coffee_script/coffee-script.js
这是通过从普通用户运行它来解决的：
rvmsudo gem pristine --all
我在互联网上四处看看，我是唯一一个有这个特定错误的人。我不知道这个文件是如何被截断的。我希望这有助于其他人。