title: Pod install, The dependency `*****` is not used in any concrete target
body: <p>When performing <code>pod install</code> on a project I get the following output:</p>
  <pre><code>Analyzing dependencies
  [!] The dependency `MMDrawerController (~&gt; 0.5.7)` is not used in any concrete target.
  The dependency `ViewUtils` is not used in any concrete target.
  The dependency `CPAnimationSequence` is not used in any concrete target.
  The dependency `iCarousel` is not used in any concrete target.
  The dependency `BlocksKit (~&gt; 2.2.5)` is not used in any concrete target.
  The dependency `AFNetworking` is not used in any concrete target.
  The dependency `MBProgressHUD (~&gt; 0.8)` is not used in any concrete target.
  The dependency `NSString-UrlEncode` is not used in any concrete target.
  The dependency `INTULocationManager` is not used in any concrete target.
  The dependency `SDWebImage (= 3.7.2)` is not used in any concrete target.
  The dependency `Adjust (from `https://github.com/adjust/ios_sdk.git`, tag `v3.4.0`)` is not used in any concrete target.
  The dependency `TARTT (from `https://github.com/takondi/tartt-sdk-ios.git`)` is not used in any concrete target.
  The dependency `SIAlertView (~&gt; 1.3)` is not used in any concrete target.
  The dependency `GoogleAppIndexing` is not used in any concrete target.
  The dependency `Gimbal` is not used in any concrete target.
  </code></pre>
  <p>How do I resolve this issue so that the install works correctly?</p>
  <p>There's more than 20 targets and a post_install pattern could this contribute to the problem?</p>
  <p>My CocoaPod version is 1.1.1.</p>
  <p>Here is the Podfile:</p>
  <pre><code>source 'https://github.com/CocoaPods/Specs.git'
  platform :ios, '7.0'
  
  pod 'MMDrawerController', '~&gt; 0.5.7'
  pod 'ViewUtils'
  pod 'CPAnimationSequence'
  pod 'iCarousel'
  pod 'BlocksKit', '~&gt; 2.2.5'
  pod 'AFNetworking'
  pod 'MBProgressHUD', '~&gt; 0.8'
  pod 'NSString-UrlEncode'
  pod 'INTULocationManager'
  pod 'SDWebImage', '3.7.2'
  pod 'Adjust', :git =&gt; 'https://github.com/adjust/ios_sdk.git', :tag =&gt; 'v3.4.0'
  pod 'TARTT', :git =&gt; 'https://github.com/takondi/tartt-sdk-ios.git'
  pod 'SIAlertView', '~&gt; 1.3'
  pod 'GoogleAppIndexing'
  pod 'Gimbal'
  
  post_install do |installer_representation|
      installer_representation.project.targets.each do |target|
          target.build_configurations.each do |config|
              config.build_settings['ONLY_ACTIVE_ARCH'] = 'NO'
          end
      end
  end
  </code></pre>