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/Gemfile

@@ -1,16 +0,0 @@
-source "http://rubygems.org"
-
-# Declare your gem's dependencies in NewBlog.gemspec.
-# Bundler will treat runtime dependencies like base dependencies, and
-# development dependencies will be added by default to the :development group.
-
-gem "mongoid"
-gemspec
-
-# Declare any dependencies that are still in development here instead of in
-# your gemspec. These might include edge Rails or gems from your path or
-# Git. Remember to move these dependencies to your gemspec before releasing
-# your gem to rubygems.org.
-
-# To use debugger
-# gem 'ruby-debug19', :require => 'ruby-debug'