当我运行compass --version时，我收到以下错误：
/Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/spec_set.rb:92:in `block in materialize': Could not find sprockets-3.5.1 in any of the sources (Bundler::GemNotFound)
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `map!'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `materialize'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/definition.rb:140:in `specs'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/definition.rb:185:in `specs_for'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:13:in `setup'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler.rb:129:in `setup'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3@global/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3/gems/compass-1.0.3/bin/compass:26:in `<top (required)>'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3/bin/compass:23:in `load'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3/bin/compass:23:in `<main>'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval'
from /Users/AC-PCARDOSO-MAC/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>'
然后我尝试使用以下方法安装缺少的gem：
rvm @global do gem install sprockets
和
gem install sprockets
即便如此，我仍然会遇到同样的错误。
我尝试卸载并重新安装SASS和COMPASS，但它没有用。
*我正在使用El Captain