APP zip package placed in lib now can be unzip into vendor

APP zip package placed in lib now can be unzip into vendor,however
server can not restart

vendor/plugins/NewBlog/app/models/comment.rb

@@ -1,7 +0,0 @@
-class Comment
-  include Mongoid::Document
-  include Mongoid::Timestamps
-  field :name, :type => String
-  field :body, :type => String
-  embedded_in :post, :inverse_of => :comments
-end

vendor/plugins/NewBlog/app/models/post.rb

@@ -1,8 +0,0 @@
-class Post
-  include Mongoid::Document
-  include Mongoid::Timestamps
-  field :title, :type => String
-  field :body, :type => String
-  embeds_many :comments
-  validates_presence_of :title, :body
-end