我已經安裝了ember-appkit-rails，但是當我執行rails g ember時：bootstrap我得到以下錯誤任何人都可以幫忙嗎？Ember-appkit-rails鏈輪NoMethodError
/home/ltsimps/.rvm/ruby-1.9.3-p392/gems/ember-appkit-rails-0.3.0/lib/ember/appkit/rails/sprockets/context.rb:10:in' '：undefined method prepend'for Sprockets :: Context：Class（NoMethodError） from /home/ltsimps/.rvm/ruby-1.9.3-p392/gems/activesupport-4.0.0/lib/active_support/dependencies.rb： 228：在'require' from /home/ltsimps/.rvm/ruby-1.9.3-p392/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228'block in require' from/home /ltsimps/.rvm/ruby-1.9.3-p392/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213'load_dependency'
from /home/ltsimps/.rvm/ruby-1.9 .3-p392/gems/activesupport-4.0.0/lib/active_support/dependencies.rb：228'req uire'
from /home/ltsimps/.rvm/ruby-1.9.3-p392/gems/ember-appkit-rails-0.3.0/lib/ember/appkit/rails/sprockets.rb:3:in ....
這對我有效。我也得到了'ruby-2.0.0-p451/gems/json-1.8.1/lib/json/ext/parser.bundle：[BUG] Segmentation fault'直到我運行了'bundle exec rails g ember：bootstrap'（from http://stackoverflow.com/questions/19895007/segmentation-fault-with-ruby-2-0-0p247-leading-to-rails-server-crashing）。 – cgenco