Having an issue installing Rails 3.2.6 app with Mongoid
===

Getting the following error:

    rails g mongoid:config
    Sass is in the process of being separated from Haml,
    and will no longer be bundled at all in Haml 3.2.0.
    Please install the 'sass' gem if you want to use Sass.
    
    /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:217:in `merge!': can't convert nil into Hash (TypeError)
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:217:in `block in revive_hash'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `each'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `each_slice'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `revive_hash'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:123:in `visit_Psych_Nodes_Mapping'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:16:in `accept'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:226:in `block in revive_hash'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `each'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `each_slice'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:211:in `revive_hash'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:123:in `visit_Psych_Nodes_Mapping'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:16:in `accept'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych/nodes/node.rb:35:in `to_ruby'
    	from /Users/Armageddon/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/psych.rb:113:in `load'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/mongoid-3.0.1/lib/mongoid/config/environment.rb:40:in `load_yaml'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/mongoid-3.0.1/lib/mongoid/config.rb:69:in `load!'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/mongoid-3.0.1/lib/mongoid.rb:148:in `load!'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/mongoid-3.0.1/lib/mongoid/railtie.rb:81:in `block in <class:Railtie>'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/initializable.rb:30:in `instance_exec'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/initializable.rb:30:in `run'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/initializable.rb:54:in `each'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/initializable.rb:54:in `run_initializers'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/application.rb:136:in `initialize!'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/railtie/configurable.rb:30:in `method_missing'
    	from /Users/Armageddon/Projects/Business/apollo/myapp/config/environment.rb:5:in `<top (required)>'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/application.rb:103:in `require'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/application.rb:103:in `require_environment!'
    	from /Users/Armageddon/.rvm/gems/ruby-1.9.3-p0@apollo/gems/railties-3.2.6/lib/rails/commands.rb:25:in `<top (required)>'
    	from script/rails:6:in `require'
    	from script/rails:6:in `<main>`

Not sure what's going on. Any tips?