在ruby on rails上进行捆绑安装时出现“致命错误”

I Have This in my GemFile

我有我的GemFile

source 'https://rubygems.org'

gem 'rails', '3.2.3'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'

gem "nested_form", :git => "https://github.com/ryanb/nested_form.git" 
gem 'lazy_high_charts', :git => "https://github.com/michelson/lazy_high_charts.git"


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platform => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'
sourc