rake build does not warning

Gemfile.lock

@@ -3,6 +3,7 @@ PATH
   specs:
     paperclip-qiniu (0.0.1)
       paperclip
+      qiniu-rs
 
 GEM
   remote: https://rubygems.org/
@@ -22,13 +23,23 @@ GEM
     builder (3.0.0)
     cocaine (0.2.1)
     i18n (0.6.0)
+    json (1.7.3)
     mime-types (1.19)
     multi_json (1.3.6)
-    paperclip (2.7.0)
-      activerecord (>= 2.3.0)
-      activesupport (>= 2.3.2)
+    paperclip (3.1.2)
+      activemodel (>= 3.0.0)
+      activerecord (>= 3.0.0)
+      activesupport (>= 3.0.0)
       cocaine (>= 0.0.2)
       mime-types
+    qiniu-rs (2.1.2)
+      json (~> 1.7.3)
+      mime-types (~> 1.19)
+      rest-client (~> 1.6.7)
+      ruby-hmac (~> 0.4.0)
+    rest-client (1.6.7)
+      mime-types (>= 1.16)
+    ruby-hmac (0.4.0)
     tzinfo (0.3.33)
 
 PLATFORMS

paperclip-qiniu.gemspec

@@ -4,9 +4,9 @@ require File.expand_path('../lib/paperclip-qiniu/version', __FILE__)
 Gem::Specification.new do |gem|
   gem.authors       = ["LI Daobing"]
   gem.email         = ["lidaobing@gmail.com"]
-  gem.description   = %q{TODO: Write a gem description}
-  gem.summary       = %q{TODO: Write a gem summary}
-  gem.homepage      = ""
+  gem.description   = %q{paperclip plugin for qiniu}
+  gem.summary       = %q{paperclip plugin for qiniu}
+  gem.homepage      = "https://github.com/lidaobing/paperclip-qiniu"
 
   gem.files         = `git ls-files`.split($\)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
@@ -15,4 +15,5 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = Paperclip::Qiniu::VERSION
   gem.add_dependency 'paperclip'
+  gem.add_dependency 'qiniu-rs'
 end